Hecho matemático: 6111 is a value of n for which s(n-1) = s(n+1).
Trivia: 6111 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fecha histórica: September 23rd is the day in 1959 that the MS Princess of Tasmania, Australia’s first passenger roll-on/roll-off diesel ferry, makes her maiden voyage across Bass Strait.