13911348561013 has 4 divisors (see below), whose sum is σ = 14034457840428. Its totient is φ = 13788239281600.

The previous prime is 13911348560983. The next prime is 13911348561073. The reversal of 13911348561013 is 31016584311931.

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 2788976820529 + 11122371740484 = 1670023^2 + 3335022^2 .

It is a cyclic number.

It is not a de Polignac number, because 13911348561013 - 2⁵ = 13911348560981 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 (13911348561073) 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, 61554639538 + ... + 61554639763.

It is an arithmetic number, because the mean of its divisors is an integer number (3508614460107).

Almost surely, 2^{13911348561013} is an apocalyptic number.

It is an amenable number.

13911348561013 is a deficient number, since it is larger than the sum of its proper divisors (123109279415).

13911348561013 is a wasteful number, since it uses less digits than its factorization.

13911348561013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123109279414.

The product of its (nonzero) digits is 233280, while the sum is 46.

The spelling of 13911348561013 in words is "thirteen trillion, nine hundred eleven billion, three hundred forty-eight million, five hundred sixty-one thousand, thirteen".