113021000 has 32 divisors (see below), whose sum is σ = 264471480. Its totient is φ = 45208000.

The previous prime is 113020991. The next prime is 113021021. The reversal of 113021000 is 120311.

It can be written as a sum of positive squares in 4 ways, for example, as 47637604 + 65383396 = 6902^2 + 8086^2 .

It is a Harshad number since it is a multiple of its sum of digits (8).

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 7 ways as a sum of consecutive naturals, for example, 55511 + ... + 57510.

Almost surely, 2^113021000 is an apocalyptic number.

113021000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113021000 is an abundant number, since it is smaller than the sum of its proper divisors (151450480).

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

113021000 is a wasteful number, since it uses less digits than its factorization.

113021000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113042 (or 113028 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 113021000 is about 10631.1335237594. The cubic root of 113021000 is about 483.4887596321.

Adding to 113021000 its reverse (120311), we get a palindrome (113141311).

The spelling of 113021000 in words is "one hundred thirteen million, twenty-one thousand".