113512403 has 4 divisors (see below), whose sum is σ = 119486760. Its totient is φ = 107538048.

The previous prime is 113512397. The next prime is 113512433. The reversal of 113512403 is 304215311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 113512403 - 2⁴ = 113512387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113512433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2987150 + ... + 2987187.

It is an arithmetic number, because the mean of its divisors is an integer number (29871690).

Almost surely, 2^113512403 is an apocalyptic number.

113512403 is a deficient number, since it is larger than the sum of its proper divisors (5974357).

113512403 is an equidigital number, since it uses as much as digits as its factorization.

113512403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5974356.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 113512403 is about 10654.2199620620. The cubic root of 113512403 is about 484.1884653533.

Adding to 113512403 its reverse (304215311), we get a palindrome (417727714).

The spelling of 113512403 in words is "one hundred thirteen million, five hundred twelve thousand, four hundred three".