11568313 has 4 divisors (see below), whose sum is σ = 12248820. Its totient is φ = 10887808.

The previous prime is 11568299. The next prime is 11568353. The reversal of 11568313 is 31386511.

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 5076009 + 6492304 = 2253^2 + 2548^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11568313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11568353) 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, 340228 + ... + 340261.

It is an arithmetic number, because the mean of its divisors is an integer number (3062205).

Almost surely, 2^11568313 is an apocalyptic number.

It is an amenable number.

11568313 is a deficient number, since it is larger than the sum of its proper divisors (680507).

11568313 is an equidigital number, since it uses as much as digits as its factorization.

11568313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680506.

The product of its digits is 2160, while the sum is 28.

The square root of 11568313 is about 3401.2222802987. Note that the first 4 decimals coincide. The cubic root of 11568313 is about 226.1639307144.

It can be divided in two parts, 11568 and 313, that added together give a square (11881 = 109²).

The spelling of 11568313 in words is "eleven million, five hundred sixty-eight thousand, three hundred thirteen".