13114321521 has 16 divisors (see below), whose sum is σ = 20004424704. Its totient is φ = 7486136784.

The previous prime is 13114321513. The next prime is 13114321567. The reversal of 13114321521 is 12512341131.

13114321521 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 13114321521 - 2³ = 13114321513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13114321491 and 13114321500.

It is not an unprimeable number, because it can be changed into a prime (13114321501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 302595 + ... + 343208.

It is an arithmetic number, because the mean of its divisors is an integer number (1250276544).

Almost surely, 2^13114321521 is an apocalyptic number.

It is an amenable number.

13114321521 is a deficient number, since it is larger than the sum of its proper divisors (6890103183).

13114321521 is an equidigital number, since it uses as much as digits as its factorization.

13114321521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646780.

The product of its digits is 720, while the sum is 24.

Adding to 13114321521 its reverse (12512341131), we get a palindrome (25626662652).

The spelling of 13114321521 in words is "thirteen billion, one hundred fourteen million, three hundred twenty-one thousand, five hundred twenty-one".