113313012121 has 4 divisors (see below), whose sum is σ = 113939051044. Its totient is φ = 112686973200.

The previous prime is 113313012119. The next prime is 113313012179. The reversal of 113313012121 is 121210313311.

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

It can be written as a sum of positive squares in 2 ways, for example, as 45993520521 + 67319491600 = 214461^2 + 259460^2 .

It is a cyclic number.

It is not a de Polignac number, because 113313012121 - 2¹ = 113313012119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113313016121) 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, 313019190 + ... + 313019551.

It is an arithmetic number, because the mean of its divisors is an integer number (28484762761).

Almost surely, 2^113313012121 is an apocalyptic number.

It is an amenable number.

113313012121 is a deficient number, since it is larger than the sum of its proper divisors (626038923).

113313012121 is an equidigital number, since it uses as much as digits as its factorization.

113313012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626038922.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 113313012121 its reverse (121210313311), we get a palindrome (234523325432).

The spelling of 113313012121 in words is "one hundred thirteen billion, three hundred thirteen million, twelve thousand, one hundred twenty-one".