1313330302331 has 4 divisors (see below), whose sum is σ = 1313361898464. Its totient is φ = 1313298706200.

The previous prime is 1313330302279. The next prime is 1313330302343. The reversal of 1313330302331 is 1332030333131.

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 1313330302331 - 2²² = 1313326108027 is a prime.

It is a super-2 number, since 2×1313330302331² (a number of 25 digits) contains 22 as substring.

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 1313330302331.

It is not an unprimeable number, because it can be changed into a prime (1313330302351) 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, 15735635 + ... + 15818876.

It is an arithmetic number, because the mean of its divisors is an integer number (328340474616).

Almost surely, 2^{1313330302331} is an apocalyptic number.

1313330302331 is a deficient number, since it is larger than the sum of its proper divisors (31596133).

1313330302331 is an equidigital number, since it uses as much as digits as its factorization.

1313330302331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31596132.

The product of its (nonzero) digits is 4374, while the sum is 26.

Adding to 1313330302331 its reverse (1332030333131), we get a palindrome (2645360635462).

The spelling of 1313330302331 in words is "one trillion, three hundred thirteen billion, three hundred thirty million, three hundred two thousand, three hundred thirty-one".