12268776931 has 2 divisors, whose sum is σ = 12268776932. Its totient is φ = 12268776930.

The previous prime is 12268776913. The next prime is 12268776941. The reversal of 12268776931 is 13967786221.

Together with previous prime (12268776913) 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 12268776931 - 2²³ = 12260388323 is a prime.

It is a super-2 number, since 2×12268776931² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12268776941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6134388465 + 6134388466.

It is an arithmetic number, because the mean of its divisors is an integer number (6134388466).

Almost surely, 2^12268776931 is an apocalyptic number.

12268776931 is a deficient number, since it is larger than the sum of its proper divisors (1).

12268776931 is an equidigital number, since it uses as much as digits as its factorization.

12268776931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1524096, while the sum is 52.

The spelling of 12268776931 in words is "twelve billion, two hundred sixty-eight million, seven hundred seventy-six thousand, nine hundred thirty-one".