11500661535313 has 4 divisors (see below), whose sum is σ = 11504686970980. Its totient is φ = 11496636099648.

The previous prime is 11500661535263. The next prime is 11500661535379. The reversal of 11500661535313 is 31353516600511.

11500661535313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 6849772480849 + 4650889054464 = 2617207^2 + 2156592^2 .

It is a cyclic number.

It is not a de Polignac number, because 11500661535313 - 2³³ = 11492071600721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11500661533313) 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, 2012713548 + ... + 2012719261.

It is an arithmetic number, because the mean of its divisors is an integer number (2876171742745).

Almost surely, 2^{11500661535313} is an apocalyptic number.

It is an amenable number.

11500661535313 is a deficient number, since it is larger than the sum of its proper divisors (4025435667).

11500661535313 is an equidigital number, since it uses as much as digits as its factorization.

11500661535313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4025435666.

The product of its (nonzero) digits is 121500, while the sum is 40.

The spelling of 11500661535313 in words is "eleven trillion, five hundred billion, six hundred sixty-one million, five hundred thirty-five thousand, three hundred thirteen".