13316461187421 has 12 divisors (see below), whose sum is σ = 20654103066432. Its totient is φ = 7609406392728.

The previous prime is 13316461187387. The next prime is 13316461187431. The reversal of 13316461187421 is 12478116461331.

13316461187421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13316461187421 - 2²² = 13316456993117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13316461187431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45294085525 + ... + 45294085818.

It is an arithmetic number, because the mean of its divisors is an integer number (1721175255536).

Almost surely, 2^{13316461187421} is an apocalyptic number.

It is an amenable number.

13316461187421 is a deficient number, since it is larger than the sum of its proper divisors (7337641879011).

13316461187421 is an equidigital number, since it uses as much as digits as its factorization.

13316461187421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90588171360 (or 90588171353 counting only the distinct ones).

The product of its digits is 580608, while the sum is 48.

The spelling of 13316461187421 in words is "thirteen trillion, three hundred sixteen billion, four hundred sixty-one million, one hundred eighty-seven thousand, four hundred twenty-one".