231601624422020 has 24 divisors (see below), whose sum is σ = 490667512275864. Its totient is φ = 91820821008896.

The previous prime is 231601624422001. The next prime is 231601624422023. The reversal of 231601624422020 is 20224426106132.

It can be written as a sum of positive squares in 4 ways, for example, as 4566221944384 + 227035402477636 = 2136872^2 + 15067694^2 .

It is not an unprimeable number, because it can be changed into a prime (231601624422023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51239295179 + ... + 51239299698.

It is an arithmetic number, because the mean of its divisors is an integer number (20444479678161).

Almost surely, 2^{231601624422020} is an apocalyptic number.

231601624422020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231601624422020 is an abundant number, since it is smaller than the sum of its proper divisors (259065887853844).

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

231601624422020 is a wasteful number, since it uses less digits than its factorization.

231601624422020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102478594999 (or 102478594997 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 35.

The spelling of 231601624422020 in words is "two hundred thirty-one trillion, six hundred one billion, six hundred twenty-four million, four hundred twenty-two thousand, twenty".