231312388632311 has 16 divisors (see below), whose sum is σ = 272894768640000. Its totient is φ = 191864920674240.

The previous prime is 231312388632251. The next prime is 231312388632313. The reversal of 231312388632311 is 113236883213132.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231312388632311 is a prime.

It is a super-2 number, since 2×231312388632311² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231312388632313) 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, 13864811 + ... + 25590188.

It is an arithmetic number, because the mean of its divisors is an integer number (17055923040000).

Almost surely, 2^{231312388632311} is an apocalyptic number.

231312388632311 is a deficient number, since it is larger than the sum of its proper divisors (41582380007689).

231312388632311 is a wasteful number, since it uses less digits than its factorization.

231312388632311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39482054.

The product of its digits is 746496, while the sum is 47.

The spelling of 231312388632311 in words is "two hundred thirty-one trillion, three hundred twelve billion, three hundred eighty-eight million, six hundred thirty-two thousand, three hundred eleven".