232131010200021 has 20 divisors (see below), whose sum is σ = 354827877784512. Its totient is φ = 151155076407048.

The previous prime is 232131010200013. The next prime is 232131010200043. The reversal of 232131010200021 is 120002010131232.

232131010200021 is a `hidden beast` number, since 2 + 321 + 310 + 10 + 2 + 0 + 0 + 0 + 21 = 666.

It is not a de Polignac number, because 232131010200021 - 2³ = 232131010200013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 232131010199967 and 232131010200003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232131010200421) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 33323426061 + ... + 33323433026.

Almost surely, 2^{232131010200021} is an apocalyptic number.

It is an amenable number.

232131010200021 is a deficient number, since it is larger than the sum of its proper divisors (122696867584491).

232131010200021 is an equidigital number, since it uses as much as digits as its factorization.

232131010200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66646859142 (or 66646859133 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 232131010200021 its reverse (120002010131232), we get a palindrome (352133020331253).

The spelling of 232131010200021 in words is "two hundred thirty-two trillion, one hundred thirty-one billion, ten million, two hundred thousand, twenty-one".