122313137857 has 2 divisors, whose sum is σ = 122313137858. Its totient is φ = 122313137856.

The previous prime is 122313137851. The next prime is 122313137909. The reversal of 122313137857 is 758731313221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98334925056 + 23978212801 = 313584^2 + 154849^2 .

It is a cyclic number.

It is not a de Polignac number, because 122313137857 - 2³⁵ = 87953399489 is a prime.

It is not a weakly prime, because it can be changed into another prime (122313137851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61156568928 + 61156568929.

It is an arithmetic number, because the mean of its divisors is an integer number (61156568929).

Almost surely, 2^122313137857 is an apocalyptic number.

It is an amenable number.

122313137857 is a deficient number, since it is larger than the sum of its proper divisors (1).

122313137857 is an equidigital number, since it uses as much as digits as its factorization.

122313137857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 211680, while the sum is 43.

The spelling of 122313137857 in words is "one hundred twenty-two billion, three hundred thirteen million, one hundred thirty-seven thousand, eight hundred fifty-seven".