113243100 has 36 divisors (see below), whose sum is σ = 327650904. Its totient is φ = 30198080.

The previous prime is 113243027. The next prime is 113243131. The reversal of 113243100 is 1342311.

It is a super-2 number, since 2×113243100² = 25647999395220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 113243100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 188439 + ... + 189038.

It is an arithmetic number, because the mean of its divisors is an integer number (9101414).

Almost surely, 2^113243100 is an apocalyptic number.

113243100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113243100 is an abundant number, since it is smaller than the sum of its proper divisors (214407804).

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

113243100 is a wasteful number, since it uses less digits than its factorization.

113243100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377494 (or 377487 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 113243100 is about 10641.5741316781. The cubic root of 113243100 is about 483.8052571270.

Adding to 113243100 its reverse (1342311), we get a palindrome (114585411).

The spelling of 113243100 in words is "one hundred thirteen million, two hundred forty-three thousand, one hundred".