231113575120 has 80 divisors (see below), whose sum is σ = 539267640912. Its totient is φ = 92114104320.

The previous prime is 231113575093. The next prime is 231113575141. The reversal of 231113575120 is 21575311132.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 79991677584 + 151121897536 = 282828^2 + 388744^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40967500 + ... + 40973140.

Almost surely, 2^231113575120 is an apocalyptic number.

231113575120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231113575120 is an abundant number, since it is smaller than the sum of its proper divisors (308154065792).

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

231113575120 is a wasteful number, since it uses less digits than its factorization.

231113575120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7400 (or 7394 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 31.

Adding to 231113575120 its reverse (21575311132), we get a palindrome (252688886252).

The spelling of 231113575120 in words is "two hundred thirty-one billion, one hundred thirteen million, five hundred seventy-five thousand, one hundred twenty".