12982311931 has 2 divisors, whose sum is σ = 12982311932. Its totient is φ = 12982311930.

The previous prime is 12982311913. The next prime is 12982311943. The reversal of 12982311931 is 13911328921.

Together with previous prime (12982311913) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12982311931 - 2¹¹ = 12982309883 is a prime.

It is a super-2 number, since 2×12982311931² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12982371931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6491155965 + 6491155966.

It is an arithmetic number, because the mean of its divisors is an integer number (6491155966).

Almost surely, 2^12982311931 is an apocalyptic number.

12982311931 is a deficient number, since it is larger than the sum of its proper divisors (1).

12982311931 is an equidigital number, since it uses as much as digits as its factorization.

12982311931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 40.

The spelling of 12982311931 in words is "twelve billion, nine hundred eighty-two million, three hundred eleven thousand, nine hundred thirty-one".