231023724465408 has 144 divisors (see below), whose sum is σ = 702708801841536. Its totient is φ = 66005685043200.

The previous prime is 231023724465371. The next prime is 231023724465493. The reversal of 231023724465408 is 804564427320132.

It is a super-2 number, since 2×231023724465408² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 357724360 + ... + 358369592.

Almost surely, 2^{231023724465408} is an apocalyptic number.

231023724465408 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

231023724465408 is an abundant number, since it is smaller than the sum of its proper divisors (471685077376128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231023724465408 is an equidigital number, since it uses as much as digits as its factorization.

231023724465408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711860 (or 711846 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 51.

The spelling of 231023724465408 in words is "two hundred thirty-one trillion, twenty-three billion, seven hundred twenty-four million, four hundred sixty-five thousand, four hundred eight".