113112103 has 4 divisors (see below), whose sum is σ = 121813048. Its totient is φ = 104411160.

The previous prime is 113112061. The next prime is 113112199. The reversal of 113112103 is 301211311.

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 113112103 - 2¹³ = 113103911 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 8700931 = 113112103 / (1 + 1 + 3 + 1 + 1 + 2 + 1 + 0 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113115103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4350453 + ... + 4350478.

It is an arithmetic number, because the mean of its divisors is an integer number (30453262).

Almost surely, 2^113112103 is an apocalyptic number.

113112103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

113112103 is a deficient number, since it is larger than the sum of its proper divisors (8700945).

113112103 is an equidigital number, since it uses as much as digits as its factorization.

113112103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8700944.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 113112103 is about 10635.4173872021. The cubic root of 113112103 is about 483.6186335691.

Adding to 113112103 its reverse (301211311), we get a palindrome (414323414).

The spelling of 113112103 in words is "one hundred thirteen million, one hundred twelve thousand, one hundred three".