115660302313 has 4 divisors (see below), whose sum is σ = 117620646480. Its totient is φ = 113699958148.

The previous prime is 115660302293. The next prime is 115660302343. The reversal of 115660302313 is 313203066511.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115660302313 is a prime.

It is a super-2 number, since 2×115660302313² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115660302343) 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, 980171995 + ... + 980172112.

It is an arithmetic number, because the mean of its divisors is an integer number (29405161620).

Almost surely, 2^115660302313 is an apocalyptic number.

It is an amenable number.

115660302313 is a deficient number, since it is larger than the sum of its proper divisors (1960344167).

115660302313 is an equidigital number, since it uses as much as digits as its factorization.

115660302313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1960344166.

The product of its (nonzero) digits is 9720, while the sum is 31.

Adding to 115660302313 its reverse (313203066511), we get a palindrome (428863368824).

The spelling of 115660302313 in words is "one hundred fifteen billion, six hundred sixty million, three hundred two thousand, three hundred thirteen".