13216865103 has 24 divisors (see below), whose sum is σ = 20567645280. Its totient is φ = 8130260160.

The previous prime is 13216865099. The next prime is 13216865111. The reversal of 13216865103 is 30156861231.

13216865103 is a `hidden beast` number, since 132 + 1 + 6 + 8 + 6 + 510 + 3 = 666.

It is not a de Polignac number, because 13216865103 - 2² = 13216865099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13216865143) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 296353 + ... + 338021.

It is an arithmetic number, because the mean of its divisors is an integer number (856985220).

Almost surely, 2^13216865103 is an apocalyptic number.

13216865103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13216865103 is a deficient number, since it is larger than the sum of its proper divisors (7350780177).

13216865103 is a wasteful number, since it uses less digits than its factorization.

13216865103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44399 (or 44396 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 13216865103 in words is "thirteen billion, two hundred sixteen million, eight hundred sixty-five thousand, one hundred three".