12313331111 has 2 divisors, whose sum is σ = 12313331112. Its totient is φ = 12313331110.

The previous prime is 12313331059. The next prime is 12313331119. The reversal of 12313331111 is 11113331321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12313331111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12313331119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6156665555 + 6156665556.

It is an arithmetic number, because the mean of its divisors is an integer number (6156665556).

Almost surely, 2^12313331111 is an apocalyptic number.

12313331111 is a deficient number, since it is larger than the sum of its proper divisors (1).

12313331111 is an equidigital number, since it uses as much as digits as its factorization.

12313331111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 162, while the sum is 20.

Adding to 12313331111 its reverse (11113331321), we get a palindrome (23426662432).

The spelling of 12313331111 in words is "twelve billion, three hundred thirteen million, three hundred thirty-one thousand, one hundred eleven".