1313580784081 has 4 divisors (see below), whose sum is σ = 1329407058672. Its totient is φ = 1297754509492.

The previous prime is 1313580784039. The next prime is 1313580784091. The reversal of 1313580784081 is 1804870853131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1313580784081 - 2⁷ = 1313580783953 is a prime.

It is a super-2 number, since 2×1313580784081² (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 (1313580784091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7913137171 + ... + 7913137336.

It is an arithmetic number, because the mean of its divisors is an integer number (332351764668).

Almost surely, 2^{1313580784081} is an apocalyptic number.

It is an amenable number.

1313580784081 is a deficient number, since it is larger than the sum of its proper divisors (15826274591).

1313580784081 is an equidigital number, since it uses as much as digits as its factorization.

1313580784081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15826274590.

The product of its (nonzero) digits is 645120, while the sum is 49.

The spelling of 1313580784081 in words is "one trillion, three hundred thirteen billion, five hundred eighty million, seven hundred eighty-four thousand, eighty-one".