13531330215 has 96 divisors (see below), whose sum is σ = 26411059584. Its totient is φ = 6358809600.

The previous prime is 13531330193. The next prime is 13531330247. The reversal of 13531330215 is 51203313531.

13531330215 is a `hidden beast` number, since 1 + 35 + 313 + 302 + 15 = 666.

It is not a de Polignac number, because 13531330215 - 2³⁰ = 12457588391 is a prime.

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 10400065 + ... + 10401365.

It is an arithmetic number, because the mean of its divisors is an integer number (275115204).

Almost surely, 2^13531330215 is an apocalyptic number.

13531330215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13531330215 is a deficient number, since it is larger than the sum of its proper divisors (12879729369).

13531330215 is a wasteful number, since it uses less digits than its factorization.

13531330215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2121 (or 2118 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 27.

Adding to 13531330215 its reverse (51203313531), we get a palindrome (64734643746).

The spelling of 13531330215 in words is "thirteen billion, five hundred thirty-one million, three hundred thirty thousand, two hundred fifteen".