231132313122 has 16 divisors (see below), whose sum is σ = 465367075200. Its totient is φ = 76527029552.

The previous prime is 231132313099. The next prime is 231132313129. The reversal of 231132313122 is 221313231132.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 231132313092 and 231132313101.

It is not an unprimeable number, because it can be changed into a prime (231132313129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129267738 + ... + 129269525.

It is an arithmetic number, because the mean of its divisors is an integer number (29085442200).

Almost surely, 2^231132313122 is an apocalyptic number.

231132313122 is an abundant number, since it is smaller than the sum of its proper divisors (234234762078).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231132313122 is a wasteful number, since it uses less digits than its factorization.

231132313122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258537417.

The product of its digits is 1296, while the sum is 24.

Adding to 231132313122 its reverse (221313231132), we get a palindrome (452445544254).

The spelling of 231132313122 in words is "two hundred thirty-one billion, one hundred thirty-two million, three hundred thirteen thousand, one hundred twenty-two".