11513246013521 has 8 divisors (see below), whose sum is σ = 13158136645824. Its totient is φ = 9868390681680.

The previous prime is 11513246013509. The next prime is 11513246013541. The reversal of 11513246013521 is 12531064231511.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11513246013521 - 2³⁰ = 11512172271697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11513246013541) 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 7 ways as a sum of consecutive naturals, for example, 8122490 + ... + 9434051.

It is an arithmetic number, because the mean of its divisors is an integer number (1644767080728).

Almost surely, 2^{11513246013521} is an apocalyptic number.

It is an amenable number.

11513246013521 is a deficient number, since it is larger than the sum of its proper divisors (1644890632303).

11513246013521 is an equidigital number, since it uses as much as digits as its factorization.

11513246013521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17650231.

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 11513246013521 in words is "eleven trillion, five hundred thirteen billion, two hundred forty-six million, thirteen thousand, five hundred twenty-one".