231331322312032 has 48 divisors (see below), whose sum is σ = 475238323439712. Its totient is φ = 110635945446400.

The previous prime is 231331322311961. The next prime is 231331322312047. The reversal of 231331322312032 is 230213223133132.

It is a junction number, because it is equal to n+sod(n) for n = 231331322311985 and 231331322312003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112101468 + ... + 114146404.

It is an arithmetic number, because the mean of its divisors is an integer number (9900798404994).

Almost surely, 2^{231331322312032} is an apocalyptic number.

It is an amenable number.

231331322312032 is an abundant number, since it is smaller than the sum of its proper divisors (243907001127680).

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

231331322312032 is a wasteful number, since it uses less digits than its factorization.

231331322312032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2198671 (or 2198663 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 31.

Adding to 231331322312032 its reverse (230213223133132), we get a palindrome (461544545445164).

The spelling of 231331322312032 in words is "two hundred thirty-one trillion, three hundred thirty-one billion, three hundred twenty-two million, three hundred twelve thousand, thirty-two".