This number is a prime.
The smallest number that is the sum of twice a positive square and a prime in 53 ways. Note it's also a palindromic prime.
The only five-digit number such that its nth digit equals the remainder when the number is divided by n + 1. [Rupinski]
The smallest palindromic prime whose alternate digits
(11311) segregate and reunite to form
two "daughter" palindromic primes (131 ;
The smallest prime equidistant between the members of an
emirp pair: (10321, 12301). Note that 11311 is a
reflectable palindromic prime of form "primemirp." [Beedassy]
(There are 4 curios for this number that have not yet been approved by an editor.)
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell