 
Band 311 (pronounced "three eleven") got their name from a police code after one of the band's former members was charged with indecent exposure. [Puckett]
The Federal Communications Commission (FCC) set aside the prime number 311,
a telephone code now used in many U.S. Cities, for connection to police non-emergencies.
311 is the eleventh three-digit prime for which the sum of the squares of its digits is also a prime. Note that the sum here is eleven as well. [Trotter]
311 is the smallest number expressible as the sum of consecutive primes in four ways. [De Geest]
Apartment number 311 is the first door to be knocked on in
the movie Ace Ventura: Pet Detective. [Shadyac]
Mickey Mantle's rookie card number 311 is prime. Note also that M+I+C+K+E+Y+M+A+N+T+L+E = 131 (A=1...Z=26), another prime which happens to contain the same digits as his rookie card number. [Rupinski]
A right-truncatable prime that can be obtained by concatenating the first three non-composite digits of  . [Necula]
The smallest three-digit prime that is the sum of three different three-digit primes. [Gallardo]
Lesser of the first occurrence of a twin prime (311, 313)
such that sets of digits of both primes are equal. [Firoozbakht]
Timothy Leary claimed to have taken LSD a total of 311
times. [Coeburn]
The sum of the digits of the first, second, third, fourth,
and fifth powers of 311 is a palindromic prime. [Silva]
To link to this page use http://primes.utm.edu/curios/page.php?number_id=837
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