113208503 has 4 divisors (see below), whose sum is σ = 115969728. Its totient is φ = 110447280.

The previous prime is 113208499. The next prime is 113208527. The reversal of 113208503 is 305802311.

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 113208503 - 2² = 113208499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113208533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1380551 + ... + 1380632.

It is an arithmetic number, because the mean of its divisors is an integer number (28992432).

Almost surely, 2^113208503 is an apocalyptic number.

113208503 is a deficient number, since it is larger than the sum of its proper divisors (2761225).

113208503 is an equidigital number, since it uses as much as digits as its factorization.

113208503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2761224.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 113208503 is about 10639.9484491232. The cubic root of 113208503 is about 483.7559828508.

The spelling of 113208503 in words is "one hundred thirteen million, two hundred eight thousand, five hundred three".