113231021000 has 64 divisors (see below), whose sum is σ = 265014462960. Its totient is φ = 45283200000.

The previous prime is 113231020993. The next prime is 113231021041. The reversal of 113231021000 is 120132311.

It can be written as a sum of positive squares in 8 ways, for example, as 5186016196 + 108045004804 = 72014^2 + 328702^2 .

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, 7113050 + ... + 7128950.

Almost surely, 2^113231021000 is an apocalyptic number.

113231021000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113231021000 is an abundant number, since it is smaller than the sum of its proper divisors (151783441960).

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

113231021000 is a wasteful number, since it uses less digits than its factorization.

113231021000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23043 (or 23029 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 113231021000 its reverse (120132311), we get a palindrome (113351153311).

The spelling of 113231021000 in words is "one hundred thirteen billion, two hundred thirty-one million, twenty-one thousand".