231320142312 has 64 divisors (see below), whose sum is σ = 664047091200. Its totient is φ = 65778229440.

The previous prime is 231320142307. The next prime is 231320142359. The reversal of 231320142312 is 213241023132.

231320142312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3227362 + ... + 3298257.

It is an arithmetic number, because the mean of its divisors is an integer number (10375735800).

Almost surely, 2^231320142312 is an apocalyptic number.

It is an amenable number.

231320142312 is an abundant number, since it is smaller than the sum of its proper divisors (432726948888).

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

231320142312 is a wasteful number, since it uses less digits than its factorization.

231320142312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6525846 (or 6525842 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 231320142312 its reverse (213241023132), we get a palindrome (444561165444).

The spelling of 231320142312 in words is "two hundred thirty-one billion, three hundred twenty million, one hundred forty-two thousand, three hundred twelve".