231632775213 has 32 divisors (see below), whose sum is σ = 361507110912. Its totient is φ = 129184161600.

The previous prime is 231632775197. The next prime is 231632775251. The reversal of 231632775213 is 312577236132.

It is not a de Polignac number, because 231632775213 - 2⁴ = 231632775197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231632775293) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 332223 + ... + 757388.

It is an arithmetic number, because the mean of its divisors is an integer number (11297097216).

Almost surely, 2^231632775213 is an apocalyptic number.

It is an amenable number.

231632775213 is a deficient number, since it is larger than the sum of its proper divisors (129874335699).

231632775213 is a wasteful number, since it uses less digits than its factorization.

231632775213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089865.

The product of its digits is 317520, while the sum is 42.

The spelling of 231632775213 in words is "two hundred thirty-one billion, six hundred thirty-two million, seven hundred seventy-five thousand, two hundred thirteen".