12868428931 has 2 divisors, whose sum is σ = 12868428932. Its totient is φ = 12868428930.

The previous prime is 12868428899. The next prime is 12868428943. The reversal of 12868428931 is 13982486821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12868428931 - 2⁵ = 12868428899 is a prime.

It is a super-2 number, since 2×12868428931² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12868420931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6434214465 + 6434214466.

It is an arithmetic number, because the mean of its divisors is an integer number (6434214466).

Almost surely, 2^12868428931 is an apocalyptic number.

12868428931 is a deficient number, since it is larger than the sum of its proper divisors (1).

12868428931 is an equidigital number, since it uses as much as digits as its factorization.

12868428931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1327104, while the sum is 52.

The spelling of 12868428931 in words is "twelve billion, eight hundred sixty-eight million, four hundred twenty-eight thousand, nine hundred thirty-one".