1313793370613 has 4 divisors (see below), whose sum is σ = 1313796360108. Its totient is φ = 1313790381120.

The previous prime is 1313793370577. The next prime is 1313793370619. The reversal of 1313793370613 is 3160733973131.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 863185930084 + 450607440529 = 929078^2 + 671273^2 .

It is a cyclic number.

It is not a de Polignac number, because 1313793370613 - 2¹² = 1313793366517 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 (1313793370619) 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, 691748 + ... + 1762413.

It is an arithmetic number, because the mean of its divisors is an integer number (328449090027).

Almost surely, 2^{1313793370613} is an apocalyptic number.

It is an amenable number.

1313793370613 is a deficient number, since it is larger than the sum of its proper divisors (2989495).

1313793370613 is an equidigital number, since it uses as much as digits as its factorization.

1313793370613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2989494.

The product of its (nonzero) digits is 642978, while the sum is 47.

The spelling of 1313793370613 in words is "one trillion, three hundred thirteen billion, seven hundred ninety-three million, three hundred seventy thousand, six hundred thirteen".