231311132232 has 32 divisors (see below), whose sum is σ = 578292194400. Its totient is φ = 77101795584.

The previous prime is 231311132219. The next prime is 231311132249. The reversal of 231311132232 is 232231113132.

It is a Harshad number since it is a multiple of its sum of digits (24).

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

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, 1135119 + ... + 1323297.

It is an arithmetic number, because the mean of its divisors is an integer number (18071631075).

Almost surely, 2^231311132232 is an apocalyptic number.

It is an amenable number.

231311132232 is an abundant number, since it is smaller than the sum of its proper divisors (346981062168).

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

231311132232 is a wasteful number, since it uses less digits than its factorization.

231311132232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239405 (or 239401 counting only the distinct ones).

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

Adding to 231311132232 its reverse (232231113132), we get a palindrome (463542245364).

The spelling of 231311132232 in words is "two hundred thirty-one billion, three hundred eleven million, one hundred thirty-two thousand, two hundred thirty-two".