113203103 has 16 divisors (see below), whose sum is σ = 126448896. Its totient is φ = 100638720.

The previous prime is 113203099. The next prime is 113203109. The reversal of 113203103 is 301302311.

It is not a de Polignac number, because 113203103 - 2² = 113203099 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 (113203109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103025 + ... + 104117.

It is an arithmetic number, because the mean of its divisors is an integer number (7903056).

Almost surely, 2^113203103 is an apocalyptic number.

113203103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

113203103 is a deficient number, since it is larger than the sum of its proper divisors (13245793).

113203103 is a wasteful number, since it uses less digits than its factorization.

113203103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 113203103 is about 10639.6946854691. The cubic root of 113203103 is about 483.7482910733.

Adding to 113203103 its reverse (301302311), we get a palindrome (414505414).

The spelling of 113203103 in words is "one hundred thirteen million, two hundred three thousand, one hundred three".