231113000 has 64 divisors (see below), whose sum is σ = 543628800. Its totient is φ = 91963200.

The previous prime is 231112997. The next prime is 231113033. The reversal of 231113000 is 311132.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238517 + ... + 239483.

It is an arithmetic number, because the mean of its divisors is an integer number (8494200).

Almost surely, 2^231113000 is an apocalyptic number.

231113000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231113000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271814400).

231113000 is an abundant number, since it is smaller than the sum of its proper divisors (312515800).

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

231113000 is a wasteful number, since it uses less digits than its factorization.

231113000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227 (or 1213 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 231113000 is about 15202.4011261379. The cubic root of 231113000 is about 613.6792773746.

Adding to 231113000 its reverse (311132), we get a palindrome (231424132).

The spelling of 231113000 in words is "two hundred thirty-one million, one hundred thirteen thousand".