2315324813 has 4 divisors (see below), whose sum is σ = 2315725980. Its totient is φ = 2314923648.

The previous prime is 2315324801. The next prime is 2315324873. The reversal of 2315324813 is 3184235132.

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 1504043524 + 811281289 = 38782^2 + 28483^2 .

It is a cyclic number.

It is not a de Polignac number, because 2315324813 - 2²⁸ = 2046889357 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 2315324813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2315324873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191798 + ... + 203511.

It is an arithmetic number, because the mean of its divisors is an integer number (578931495).

Almost surely, 2^2315324813 is an apocalyptic number.

It is an amenable number.

2315324813 is a deficient number, since it is larger than the sum of its proper divisors (401167).

2315324813 is an equidigital number, since it uses as much as digits as its factorization.

2315324813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401166.

The product of its digits is 17280, while the sum is 32.

The square root of 2315324813 is about 48117.8221971859. The cubic root of 2315324813 is about 1322.9313514385.

Adding to 2315324813 its reverse (3184235132), we get a palindrome (5499559945).

The spelling of 2315324813 in words is "two billion, three hundred fifteen million, three hundred twenty-four thousand, eight hundred thirteen".