Fait mathématique: 23045 is an uninteresting number.
Culture générale: 23045 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Date historique: February 3rd is the day in 1972 that the first day of the seven-day 1972 Iran blizzard, which would kill at least 4,000 people, making it the deadliest snowstorm in history.