1313641313 has 8 divisors (see below), whose sum is σ = 1336836960. Its totient is φ = 1290476800.

The previous prime is 1313641291. The next prime is 1313641319. The reversal of 1313641313 is 3131463131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1313641313 - 2²⁸ = 1045205857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313641319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87506 + ... + 101412.

It is an arithmetic number, because the mean of its divisors is an integer number (167104620).

Almost surely, 2^1313641313 is an apocalyptic number.

It is an amenable number.

1313641313 is a deficient number, since it is larger than the sum of its proper divisors (23195647).

1313641313 is a wasteful number, since it uses less digits than its factorization.

1313641313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15567.

The product of its digits is 1944, while the sum is 26.

The square root of 1313641313 is about 36244.1900585459. The cubic root of 1313641313 is about 1095.1970518929.

The spelling of 1313641313 in words is "one billion, three hundred thirteen million, six hundred forty-one thousand, three hundred thirteen".