2115115313 has 2 divisors, whose sum is σ = 2115115314. Its totient is φ = 2115115312.

The previous prime is 2115115307. The next prime is 2115115411. The reversal of 2115115313 is 3135115112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1898083489 + 217031824 = 43567^2 + 14732^2 .

It is a cyclic number.

It is not a de Polignac number, because 2115115313 - 2²² = 2110921009 is a prime.

It is not a weakly prime, because it can be changed into another prime (2115115813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1057557656 + 1057557657.

It is an arithmetic number, because the mean of its divisors is an integer number (1057557657).

Almost surely, 2^2115115313 is an apocalyptic number.

It is an amenable number.

2115115313 is a deficient number, since it is larger than the sum of its proper divisors (1).

2115115313 is an equidigital number, since it uses as much as digits as its factorization.

2115115313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 450, while the sum is 23.

The square root of 2115115313 is about 45990.3828316312. The cubic root of 2115115313 is about 1283.6442600459.

The spelling of 2115115313 in words is "two billion, one hundred fifteen million, one hundred fifteen thousand, three hundred thirteen".