113515111313 has 4 divisors (see below), whose sum is σ = 120192470820. Its totient is φ = 106837751808.

The previous prime is 113515111267. The next prime is 113515111319. The reversal of 113515111313 is 313111515311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 313111515311 = 7 ⋅44730216473.

It can be written as a sum of positive squares in 2 ways, for example, as 41716837009 + 71798274304 = 204247^2 + 267952^2 .

It is a cyclic number.

It is not a de Polignac number, because 113515111313 - 2⁸ = 113515111057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113515111319) 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, 3338679728 + ... + 3338679761.

It is an arithmetic number, because the mean of its divisors is an integer number (30048117705).

Almost surely, 2^113515111313 is an apocalyptic number.

It is an amenable number.

113515111313 is a deficient number, since it is larger than the sum of its proper divisors (6677359507).

113515111313 is an equidigital number, since it uses as much as digits as its factorization.

113515111313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6677359506.

The product of its digits is 675, while the sum is 26.

Adding to 113515111313 its reverse (313111515311), we get a palindrome (426626626624).

The spelling of 113515111313 in words is "one hundred thirteen billion, five hundred fifteen million, one hundred eleven thousand, three hundred thirteen".