124257409931 has 2 divisors, whose sum is σ = 124257409932. Its totient is φ = 124257409930.

The previous prime is 124257409907. The next prime is 124257409943. The reversal of 124257409931 is 139904752421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 124257409931 - 2⁶ = 124257409867 is a prime.

It is a super-2 number, since 2×124257409931² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (124257409951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62128704965 + 62128704966.

It is an arithmetic number, because the mean of its divisors is an integer number (62128704966).

Almost surely, 2^124257409931 is an apocalyptic number.

124257409931 is a deficient number, since it is larger than the sum of its proper divisors (1).

124257409931 is an equidigital number, since it uses as much as digits as its factorization.

124257409931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 124257409931 in words is "one hundred twenty-four billion, two hundred fifty-seven million, four hundred nine thousand, nine hundred thirty-one".