Fatto generale: 28131 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 28131 is an uninteresting number.
Trivia: 28131 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: January 6th is the day in 1995 that a chemical fire in an apartment complex in Manila, Philippines, leads to the discovery of plans for Project Bojinka, a mass-terrorist attack.