113121013103 has 4 divisors (see below), whose sum is σ = 129281157840. Its totient is φ = 96960868368.

The previous prime is 113121013079. The next prime is 113121013121. The reversal of 113121013103 is 301310121311.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 113121013103 - 2⁶ = 113121013039 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 (113121013133) 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, 8080072358 + ... + 8080072371.

It is an arithmetic number, because the mean of its divisors is an integer number (32320289460).

Almost surely, 2^113121013103 is an apocalyptic number.

113121013103 is a deficient number, since it is larger than the sum of its proper divisors (16160144737).

113121013103 is an equidigital number, since it uses as much as digits as its factorization.

113121013103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16160144736.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 113121013103 its reverse (301310121311), we get a palindrome (414431134414).

The spelling of 113121013103 in words is "one hundred thirteen billion, one hundred twenty-one million, thirteen thousand, one hundred three".