231311375551372 has 6 divisors (see below), whose sum is σ = 404794907214908. Its totient is φ = 115655687775684.

The previous prime is 231311375551369. The next prime is 231311375551393. The reversal of 231311375551372 is 273155573113132.

It is a super-2 number, since 2×231311375551372² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28913921943918 + ... + 28913921943925.

Almost surely, 2^{231311375551372} is an apocalyptic number.

It is an amenable number.

231311375551372 is a deficient number, since it is larger than the sum of its proper divisors (173483531663536).

231311375551372 is a wasteful number, since it uses less digits than its factorization.

231311375551372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57827843887847 (or 57827843887845 counting only the distinct ones).

The product of its digits is 1984500, while the sum is 49.

The spelling of 231311375551372 in words is "two hundred thirty-one trillion, three hundred eleven billion, three hundred seventy-five million, five hundred fifty-one thousand, three hundred seventy-two".