13520010215 has 16 divisors (see below), whose sum is σ = 17180190720. Its totient is φ = 10185374880.

The previous prime is 13520010211. The next prime is 13520010247. The reversal of 13520010215 is 51201002531.

It is a happy number.

It is not a de Polignac number, because 13520010215 - 2² = 13520010211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13520010211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 410231 + ... + 441960.

It is an arithmetic number, because the mean of its divisors is an integer number (1073761920).

Almost surely, 2^13520010215 is an apocalyptic number.

13520010215 is a deficient number, since it is larger than the sum of its proper divisors (3660180505).

13520010215 is a wasteful number, since it uses less digits than its factorization.

13520010215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852382.

The product of its (nonzero) digits is 300, while the sum is 20.

Adding to 13520010215 its reverse (51201002531), we get a palindrome (64721012746).

The spelling of 13520010215 in words is "thirteen billion, five hundred twenty million, ten thousand, two hundred fifteen".