122391460931 has 2 divisors, whose sum is σ = 122391460932. Its totient is φ = 122391460930.

The previous prime is 122391460927. The next prime is 122391460963. The reversal of 122391460931 is 139064193221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122391460931 - 2² = 122391460927 is a prime.

It is a super-2 number, since 2×122391460931² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122391466931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61195730465 + 61195730466.

It is an arithmetic number, because the mean of its divisors is an integer number (61195730466).

Almost surely, 2^122391460931 is an apocalyptic number.

122391460931 is a deficient number, since it is larger than the sum of its proper divisors (1).

122391460931 is an equidigital number, since it uses as much as digits as its factorization.

122391460931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 41.

The spelling of 122391460931 in words is "one hundred twenty-two billion, three hundred ninety-one million, four hundred sixty thousand, nine hundred thirty-one".