13213521363 has 16 divisors (see below), whose sum is σ = 20679077120. Its totient is φ = 7346513376.

The previous prime is 13213521359. The next prime is 13213521389. The reversal of 13213521363 is 36312531231.

It is not a de Polignac number, because 13213521363 - 2² = 13213521359 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13213521363.

It is not an unprimeable number, because it can be changed into a prime (13213521323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8502133 + ... + 8503686.

It is an arithmetic number, because the mean of its divisors is an integer number (1292442320).

Almost surely, 2^13213521363 is an apocalyptic number.

13213521363 is a deficient number, since it is larger than the sum of its proper divisors (7465555757).

13213521363 is a wasteful number, since it uses less digits than its factorization.

13213521363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17005866.

The product of its digits is 9720, while the sum is 30.

The spelling of 13213521363 in words is "thirteen billion, two hundred thirteen million, five hundred twenty-one thousand, three hundred sixty-three".