231132331332 has 120 divisors (see below), whose sum is σ = 701864313920. Its totient is φ = 64955183040.

The previous prime is 231132331321. The next prime is 231132331403. The reversal of 231132331332 is 233133231132.

231132331332 is a `hidden beast` number, since 2 + 3 + 1 + 1 + 323 + 3 + 1 + 332 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 = 231132331296 and 231132331305.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 696982 + ... + 973677.

Almost surely, 2^231132331332 is an apocalyptic number.

It is an amenable number.

231132331332 is an abundant number, since it is smaller than the sum of its proper divisors (470731982588).

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

231132331332 is a wasteful number, since it uses less digits than its factorization.

231132331332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1670743 (or 1670732 counting only the distinct ones).

The product of its digits is 5832, while the sum is 27.

Adding to 231132331332 its reverse (233133231132), we get a palindrome (464265562464).

The spelling of 231132331332 in words is "two hundred thirty-one billion, one hundred thirty-two million, three hundred thirty-one thousand, three hundred thirty-two".