231088231280 has 20 divisors (see below), whose sum is σ = 537280137912. Its totient is φ = 92435292480.

The previous prime is 231088231249. The next prime is 231088231337. The reversal of 231088231280 is 82132880132.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×231088231280² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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, 1444301366 + ... + 1444301525.

Almost surely, 2^231088231280 is an apocalyptic number.

231088231280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231088231280 is an abundant number, since it is smaller than the sum of its proper divisors (306191906632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231088231280 is a wasteful number, since it uses less digits than its factorization.

231088231280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2888602904 (or 2888602898 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 38.

The spelling of 231088231280 in words is "two hundred thirty-one billion, eighty-eight million, two hundred thirty-one thousand, two hundred eighty".