1313616631331 has 8 divisors (see below), whose sum is σ = 1314356900784. Its totient is φ = 1312876524960.

The previous prime is 1313616631291. The next prime is 1313616631339. The reversal of 1313616631331 is 1331366163131.

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 1313616631331 - 2³⁴ = 1296436762147 is a prime.

It is a super-2 number, since 2×1313616631331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313616631339) 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, 18352745 + ... + 18424181.

It is an arithmetic number, because the mean of its divisors is an integer number (164294612598).

Almost surely, 2^{1313616631331} is an apocalyptic number.

1313616631331 is a deficient number, since it is larger than the sum of its proper divisors (740269453).

1313616631331 is an equidigital number, since it uses as much as digits as its factorization.

1313616631331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81541.

The product of its digits is 52488, while the sum is 38.

The spelling of 1313616631331 in words is "one trillion, three hundred thirteen billion, six hundred sixteen million, six hundred thirty-one thousand, three hundred thirty-one".