231311111310988 has 12 divisors (see below), whose sum is σ = 409918425108640. Its totient is φ = 114191561279952.

The previous prime is 231311111310971. The next prime is 231311111310997. The reversal of 231311111310988 is 889013111113132.

It is a super-2 number, since 2×231311111310988² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365998593531 + ... + 365998594162.

Almost surely, 2^{231311111310988} is an apocalyptic number.

It is an amenable number.

231311111310988 is a deficient number, since it is larger than the sum of its proper divisors (178607313797652).

231311111310988 is a wasteful number, since it uses less digits than its factorization.

231311111310988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731997187776 (or 731997187774 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 43.

The spelling of 231311111310988 in words is "two hundred thirty-one trillion, three hundred eleven billion, one hundred eleven million, three hundred ten thousand, nine hundred eighty-eight".