231120010021131 has 40 divisors (see below), whose sum is σ = 430445732961024. Its totient is φ = 120062342864880.

The previous prime is 231120010021049. The next prime is 231120010021249. The reversal of 231120010021131 is 131120010021132.

231120010021131 is a `hidden beast` number, since 2 + 311 + 200 + 1 + 0 + 0 + 21 + 131 = 666.

It is not a de Polignac number, because 231120010021131 - 2¹⁴ = 231120010004747 is a prime.

It is a super-2 number, since 2×231120010021131² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231120010021331) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 18528133095 + ... + 18528145568.

Almost surely, 2^{231120010021131} is an apocalyptic number.

231120010021131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

231120010021131 is a deficient number, since it is larger than the sum of its proper divisors (199325722939893).

231120010021131 is a wasteful number, since it uses less digits than its factorization.

231120010021131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37056278693 (or 37056278684 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 231120010021131 its reverse (131120010021132), we get a palindrome (362240020042263).

Subtracting from 231120010021131 its reverse (131120010021132), we obtain a palindrome (99999999999999).

The spelling of 231120010021131 in words is "two hundred thirty-one trillion, one hundred twenty billion, ten million, twenty-one thousand, one hundred thirty-one".