113231000 has 64 divisors (see below), whose sum is σ = 266760000. Its totient is φ = 44985600.

The previous prime is 113230991. The next prime is 113231011. The reversal of 113231000 is 132311.

It is a super-2 number, since 2×113231000² = 25642518722000000, which 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 15 ways as a sum of consecutive naturals, for example, 198716 + ... + 199284.

It is an arithmetic number, because the mean of its divisors is an integer number (4168125).

Almost surely, 2^113231000 is an apocalyptic number.

113231000 is a gapful number since it is divisible by the number (10) 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 113231000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133380000).

113231000 is an abundant number, since it is smaller than the sum of its proper divisors (153529000).

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

113231000 is a wasteful number, since it uses less digits than its factorization.

113231000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789 (or 775 counting only the distinct ones).

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

The square root of 113231000 is about 10641.0055915783. The cubic root of 113231000 is about 483.7880250186.

Adding to 113231000 its reverse (132311), we get a palindrome (113363311).

The spelling of 113231000 in words is "one hundred thirteen million, two hundred thirty-one thousand".