2315113021 has 16 divisors (see below), whose sum is σ = 2550652720. Its totient is φ = 2088322560.

The previous prime is 2315113013. The next prime is 2315113027. The reversal of 2315113021 is 1203115132.

It can be written as a sum of positive squares in 8 ways, for example, as 156025 + 2314956996 = 395^2 + 48114^2 .

It is a cyclic number.

It is not a de Polignac number, because 2315113021 - 2³ = 2315113013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2315113021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2315113027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92251 + ... + 114631.

It is an arithmetic number, because the mean of its divisors is an integer number (159415795).

Almost surely, 2^2315113021 is an apocalyptic number.

It is an amenable number.

2315113021 is a deficient number, since it is larger than the sum of its proper divisors (235539699).

2315113021 is a wasteful number, since it uses less digits than its factorization.

2315113021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22576.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 2315113021 is about 48115.6213822497. The cubic root of 2315113021 is about 1322.8910122718.

Adding to 2315113021 its reverse (1203115132), we get a palindrome (3518228153).

The spelling of 2315113021 in words is "two billion, three hundred fifteen million, one hundred thirteen thousand, twenty-one".