241543903 (a.k.a “Heads in Freezers”) is a numerical keyword associated with a photo meme that involves people taking pictures with their heads in the freezer & sharing them online. By tagging a series of image files with a cryptic number, a high level of search engine optimization can be easily achieved. As a result, typing “241543903” into image search engines like Google Images successfully yields pages after pages of pictures showing people’s heads in freezers.

In this February 27, 1984, file photo, singer Placido Domingo laughs with members of the Rockettes at New York's Radio City Music Hall. The singer and dancers met while rehearsing for Channel Thirteen's “Gala of Stars 1984”. Nine women in the opera world have told The Associated Press that they were sexually harassed by Domingo, one of the most celebrated and powerful men in opera. The women say the encounters took place over three decades, at venues that included opera companies where he held top managerial positions. (Photo by Steve Friedman/AP Photo/File)

In this April 14, 2014 file photo, Hamamatou Harouna, 10, who lost the use of her legs to polio, crawls to the restroom on the grounds of the Catholic Church where she and hundreds of others found refuge after fleeing violence in her village, in Carnot, Central African Republic. Health authorities on Tuesday, August 25, 2020 are expected to declare the African continent free of the wild poliovirus after decades of effort, though cases of vaccine-derived polio are still sparking outbreaks of the paralyzing disease in more than a dozen countries. (Photo by Jerome Delay/AP Photo/File)

A cat walks in front of the body of a man killed by unknown gunmen in Manila, Philippines early October 18, 2016. A sign on a cardboard found near the body reads, “Pusher Ako, Wag Tularan”, which translates to “I am a (drug) pusher, don't be like me”. (Photo by Damir Sagolj/Reuters)

A man shows the logo of a T-shirt that reads “Stop the Cut” referring to Female Genital Mutilation (FGM) during a social event advocating against harmful practices such as FGM at the Imbirikani Girls High School in Imbirikani, Kenya, April 21, 2016. (Photo by Siegfried Modola/Reuters)

A ballet dancer attends a photo shooting as activists from the environmentalist group Greenpeace unfurl a giant banner on the Eiffel Tower which reads “Liberty, Equality, Fraternity” in a call on French citizens to vote against the National Front (FN) presidential candidate Marine Le Pen, in Paris, France May 5, 2017. (Photo by Gonzalo Fuentes/Reuters)

A s*x worker (C) stages a performance to denounce what they say is abuse and social stigma against them in Madrid, Spain, October 14, 2015. Placard reads "Prostitutes are the ones that make the streets dirty". (Photo by Andrea Comas/Reuters)

A woman holds a placard that reads, “I am Charlie”, during a vigil to pay tribute to the victims of a shooting by gunmen at the offices of weekly satirical magazine Charlie Hebdo in Paris, at Trafalgar Square in London January 7, 2015. (Photo by Stefan Wermuth/Reuters)