231233000131 has 12 divisors (see below), whose sum is σ = 268993622520. Its totient is φ = 198193601760.

The previous prime is 231233000099. The next prime is 231233000161. The reversal of 231233000131 is 131000332132.

It is not a de Polignac number, because 231233000131 - 2⁵ = 231233000099 is a prime.

It is a super-2 number, since 2×231233000131² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231233000099 and 231233000108.

It is not an unprimeable number, because it can be changed into a prime (231233000161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2340900 + ... + 2437678.

It is an arithmetic number, because the mean of its divisors is an integer number (22416135210).

Almost surely, 2^231233000131 is an apocalyptic number.

231233000131 is a deficient number, since it is larger than the sum of its proper divisors (37760622389).

231233000131 is an equidigital number, since it uses as much as digits as its factorization.

231233000131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145554 (or 145547 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 231233000131 its reverse (131000332132), we get a palindrome (362233332263).

The spelling of 231233000131 in words is "two hundred thirty-one billion, two hundred thirty-three million, one hundred thirty-one", and thus it is an aban number.