113103121 has 4 divisors (see below), whose sum is σ = 118020672. Its totient is φ = 108185572.

The previous prime is 113103101. The next prime is 113103127. The reversal of 113103121 is 121301311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 121301311 = 1109 ⋅109379.

It is a cyclic number.

It is not a de Polignac number, because 113103121 - 2⁹ = 113102609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113103127) 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, 2458741 + ... + 2458786.

It is an arithmetic number, because the mean of its divisors is an integer number (29505168).

Almost surely, 2^113103121 is an apocalyptic number.

It is an amenable number.

113103121 is a deficient number, since it is larger than the sum of its proper divisors (4917551).

113103121 is an equidigital number, since it uses as much as digits as its factorization.

113103121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4917550.

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

The square root of 113103121 is about 10634.9951104831. The cubic root of 113103121 is about 483.6058321758.

Adding to 113103121 its reverse (121301311), we get a palindrome (234404432).

The spelling of 113103121 in words is "one hundred thirteen million, one hundred three thousand, one hundred twenty-one".