1313323679 has 4 divisors (see below), whose sum is σ = 1341266784. Its totient is φ = 1285380576.

The previous prime is 1313323663. The next prime is 1313323721. The reversal of 1313323679 is 9763233131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1313323679 - 2⁴ = 1313323663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313323619) 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 3 ways as a sum of consecutive naturals, for example, 13971482 + ... + 13971575.

It is an arithmetic number, because the mean of its divisors is an integer number (335316696).

Almost surely, 2^1313323679 is an apocalyptic number.

1313323679 is a deficient number, since it is larger than the sum of its proper divisors (27943105).

1313323679 is an equidigital number, since it uses as much as digits as its factorization.

1313323679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27943104.

The product of its digits is 61236, while the sum is 38.

The square root of 1313323679 is about 36239.8079327140. The cubic root of 1313323679 is about 1095.1087731370.

The spelling of 1313323679 in words is "one billion, three hundred thirteen million, three hundred twenty-three thousand, six hundred seventy-nine".