113504403 has 6 divisors (see below), whose sum is σ = 151363812. Its totient is φ = 75657300.

The previous prime is 113504399. The next prime is 113504411. The reversal of 113504403 is 304405311.

It is not a de Polignac number, because 113504403 - 2² = 113504399 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 113504403.

It is not an unprimeable number, because it can be changed into a prime (113504473) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15378 + ... + 21528.

It is an arithmetic number, because the mean of its divisors is an integer number (25227302).

Almost surely, 2^113504403 is an apocalyptic number.

113504403 is a deficient number, since it is larger than the sum of its proper divisors (37859409).

113504403 is an frugal number, since it uses more digits than its factorization.

113504403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12305 (or 6154 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 113504403 is about 10653.8445173562. The cubic root of 113504403 is about 484.1770903887.

Adding to 113504403 its reverse (304405311), we get a palindrome (417909714).

It can be divided in two parts, 11350 and 4403, that added together give a triangular number (15753 = T₁₇₇).

The spelling of 113504403 in words is "one hundred thirteen million, five hundred four thousand, four hundred three".