231320132232 has 64 divisors (see below), whose sum is σ = 666978153600. Its totient is φ = 65485117440.

The previous prime is 231320132221. The next prime is 231320132233. The reversal of 231320132232 is 232231023132.

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

It is not an unprimeable number, because it can be changed into a prime (231320132233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6297769 + ... + 6334392.

It is an arithmetic number, because the mean of its divisors is an integer number (10421533650).

Almost surely, 2^231320132232 is an apocalyptic number.

It is an amenable number.

231320132232 is an abundant number, since it is smaller than the sum of its proper divisors (435658021368).

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

231320132232 is a wasteful number, since it uses less digits than its factorization.

231320132232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12632286 (or 12632282 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 231320132232 its reverse (232231023132), we get a palindrome (463551155364).

The spelling of 231320132232 in words is "two hundred thirty-one billion, three hundred twenty million, one hundred thirty-two thousand, two hundred thirty-two".