331457523021 has 24 divisors (see below), whose sum is σ = 500045888160. Its totient is φ = 211355402976.

The previous prime is 331457523013. The next prime is 331457523031. The reversal of 331457523021 is 120325754133.

331457523021 is a `hidden beast` number, since 3 + 31 + 4 + 575 + 2 + 30 + 21 = 666.

It is not a de Polignac number, because 331457523021 - 2³ = 331457523013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331457523031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8415675 + ... + 8454968.

It is an arithmetic number, because the mean of its divisors is an integer number (20835245340).

Almost surely, 2^331457523021 is an apocalyptic number.

It is an amenable number.

331457523021 is a deficient number, since it is larger than the sum of its proper divisors (168588365139).

331457523021 is a wasteful number, since it uses less digits than its factorization.

331457523021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16870745 (or 16870742 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The spelling of 331457523021 in words is "three hundred thirty-one billion, four hundred fifty-seven million, five hundred twenty-three thousand, twenty-one".