231731922963 has 16 divisors (see below), whose sum is σ = 314930798496. Its totient is φ = 151524848640.

The previous prime is 231731922959. The next prime is 231731923021. The reversal of 231731922963 is 369229137132.

It is not a de Polignac number, because 231731922963 - 2² = 231731922959 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231731922953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1729020 + ... + 1858217.

It is an arithmetic number, because the mean of its divisors is an integer number (19683174906).

Almost surely, 2^231731922963 is an apocalyptic number.

231731922963 is a deficient number, since it is larger than the sum of its proper divisors (83198875533).

231731922963 is a wasteful number, since it uses less digits than its factorization.

231731922963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3587654.

The product of its digits is 734832, while the sum is 48.

The spelling of 231731922963 in words is "two hundred thirty-one billion, seven hundred thirty-one million, nine hundred twenty-two thousand, nine hundred sixty-three".