12313132331 has 2 divisors, whose sum is σ = 12313132332. Its totient is φ = 12313132330.

The previous prime is 12313132261. The next prime is 12313132339. The reversal of 12313132331 is 13323131321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12313132331 is a prime.

It is a super-2 number, since 2×12313132331² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12313132297 and 12313132306.

It is not a weakly prime, because it can be changed into another prime (12313132339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6156566165 + 6156566166.

It is an arithmetic number, because the mean of its divisors is an integer number (6156566166).

Almost surely, 2^12313132331 is an apocalyptic number.

12313132331 is a deficient number, since it is larger than the sum of its proper divisors (1).

12313132331 is an equidigital number, since it uses as much as digits as its factorization.

12313132331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 972, while the sum is 23.

Adding to 12313132331 its reverse (13323131321), we get a palindrome (25636263652).

The spelling of 12313132331 in words is "twelve billion, three hundred thirteen million, one hundred thirty-two thousand, three hundred thirty-one".