231322242223131 has 32 divisors (see below), whose sum is σ = 325104390124800. Its totient is φ = 145899606827520.

The previous prime is 231322242223123. The next prime is 231322242223139. The reversal of 231322242223131 is 131322242223132.

It is an interprime number because it is at equal distance from previous prime (231322242223123) and next prime (231322242223139).

It is not a de Polignac number, because 231322242223131 - 2³ = 231322242223123 is a prime.

It is a super-2 number, since 2×231322242223131² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231322242223092 and 231322242223101.

It is not an unprimeable number, because it can be changed into a prime (231322242223139) 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, 253999896 + ... + 254908986.

It is an arithmetic number, because the mean of its divisors is an integer number (10159512191400).

Almost surely, 2^{231322242223131} is an apocalyptic number.

231322242223131 is a deficient number, since it is larger than the sum of its proper divisors (93782147901669).

231322242223131 is a wasteful number, since it uses less digits than its factorization.

231322242223131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915179.

The product of its digits is 41472, while the sum is 33.

Adding to 231322242223131 its reverse (131322242223132), we get a palindrome (362644484446263).

Subtracting from 231322242223131 its reverse (131322242223132), we obtain a palindrome (99999999999999).

The spelling of 231322242223131 in words is "two hundred thirty-one trillion, three hundred twenty-two billion, two hundred forty-two million, two hundred twenty-three thousand, one hundred thirty-one".