13215332513 has 8 divisors (see below), whose sum is σ = 13575061632. Its totient is φ = 12855738096.

The previous prime is 13215332461. The next prime is 13215332539. The reversal of 13215332513 is 31523351231.

It is a happy number.

13215332513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13215332513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13215332413) 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 7 ways as a sum of consecutive naturals, for example, 184106 + ... + 245612.

It is an arithmetic number, because the mean of its divisors is an integer number (1696882704).

Almost surely, 2^13215332513 is an apocalyptic number.

It is an amenable number.

13215332513 is a deficient number, since it is larger than the sum of its proper divisors (359729119).

13215332513 is an equidigital number, since it uses as much as digits as its factorization.

13215332513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67351.

The product of its digits is 8100, while the sum is 29.

Adding to 13215332513 its reverse (31523351231), we get a palindrome (44738683744).

The spelling of 13215332513 in words is "thirteen billion, two hundred fifteen million, three hundred thirty-two thousand, five hundred thirteen".