Hecho general: 2333 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 2333 is a right-truncatable prime.
Trivia: 2333 is an uninteresting number.
Fecha histórica: May 21st is the day in 1969 that Civil unrest in Rosario, Argentina, known as Rosariazo, following the death of a 15-year-old student.