2115113113 has 4 divisors (see below), whose sum is σ = 2116439140. Its totient is φ = 2113787088.

The previous prime is 2115113107. The next prime is 2115113171. The reversal of 2115113113 is 3113115112.

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 270668304 + 1844444809 = 16452^2 + 42947^2 .

It is a cyclic number.

It is not a de Polignac number, because 2115113113 - 2⁵ = 2115113081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2115113183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 660618 + ... + 663811.

It is an arithmetic number, because the mean of its divisors is an integer number (529109785).

Almost surely, 2^2115113113 is an apocalyptic number.

It is an amenable number.

2115113113 is a deficient number, since it is larger than the sum of its proper divisors (1326027).

2115113113 is a wasteful number, since it uses less digits than its factorization.

2115113113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326026.

The product of its digits is 90, while the sum is 19.

The square root of 2115113113 is about 45990.3589135810. The cubic root of 2115113113 is about 1283.6438149925.

Adding to 2115113113 its reverse (3113115112), we get a palindrome (5228228225).

The spelling of 2115113113 in words is "two billion, one hundred fifteen million, one hundred thirteen thousand, one hundred thirteen".