Hecho general: 11891 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 11891 is a boring number.
Trivia: 11891 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fecha histórica: July 21st is the day in 1976 that Christopher Ewart-Biggs British ambassador to the Republic of Ireland is assassinated by the Provisional IRA.