231011320010131 has 32 divisors (see below), whose sum is σ = 250516648774400. Its totient is φ = 212277474541440.

The previous prime is 231011320010089. The next prime is 231011320010171. The reversal of 231011320010131 is 131010023110132.

It is a cyclic number.

It is not a de Polignac number, because 231011320010131 - 2²⁷ = 231011185792403 is a prime.

It is a super-2 number, since 2×231011320010131² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 231011320010099 and 231011320010108.

It is not an unprimeable number, because it can be changed into a prime (231011320010171) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3577157200 + ... + 3577221778.

It is an arithmetic number, because the mean of its divisors is an integer number (7828645274200).

Almost surely, 2^{231011320010131} is an apocalyptic number.

231011320010131 is a deficient number, since it is larger than the sum of its proper divisors (19505328764269).

231011320010131 is a wasteful number, since it uses less digits than its factorization.

231011320010131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80339.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 231011320010131 its reverse (131010023110132), we get a palindrome (362021343120263).

The spelling of 231011320010131 in words is "two hundred thirty-one trillion, eleven billion, three hundred twenty million, ten thousand, one hundred thirty-one".