423958888931 has 2 divisors, whose sum is σ = 423958888932. Its totient is φ = 423958888930.

The previous prime is 423958888909. The next prime is 423958888939. The reversal of 423958888931 is 139888859324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 423958888931 - 2⁶ = 423958888867 is a prime.

It is a super-2 number, since 2×423958888931² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (423958888939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211979444465 + 211979444466.

It is an arithmetic number, because the mean of its divisors is an integer number (211979444466).

Almost surely, 2^423958888931 is an apocalyptic number.

423958888931 is a deficient number, since it is larger than the sum of its proper divisors (1).

423958888931 is an equidigital number, since it uses as much as digits as its factorization.

423958888931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 119439360, while the sum is 68.

The spelling of 423958888931 in words is "four hundred twenty-three billion, nine hundred fifty-eight million, eight hundred eighty-eight thousand, nine hundred thirty-one".