Fatto matematico: 23218 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 23218 is an unremarkable number.
Data storica: July 26th is the day in 2005 that Mumbai, India receives 99.5cm of rain (39.17 inches) within 24 hours, bringing the city to a halt for over 2 days.