1313033961599 has 4 divisors (see below), whose sum is σ = 1370122394736. Its totient is φ = 1255945528464.

The previous prime is 1313033961587. The next prime is 1313033961601. The reversal of 1313033961599 is 9951693303131.

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 1313033961599 - 2²⁴ = 1313017184383 is a prime.

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 1313033961599.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313033961529) 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, 28544216534 + ... + 28544216579.

It is an arithmetic number, because the mean of its divisors is an integer number (342530598684).

Almost surely, 2^{1313033961599} is an apocalyptic number.

1313033961599 is a deficient number, since it is larger than the sum of its proper divisors (57088433137).

1313033961599 is an equidigital number, since it uses as much as digits as its factorization.

1313033961599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57088433136.

The product of its (nonzero) digits is 1771470, while the sum is 53.

The spelling of 1313033961599 in words is "one trillion, three hundred thirteen billion, thirty-three million, nine hundred sixty-one thousand, five hundred ninety-nine".