13213319985 has 24 divisors (see below), whose sum is σ = 23193006720. Its totient is φ = 6957898272.

The previous prime is 13213319969. The next prime is 13213319993. The reversal of 13213319985 is 58991331231.

13213319985 is a `hidden beast` number, since 1 + 321 + 3 + 319 + 9 + 8 + 5 = 666.

It is not a de Polignac number, because 13213319985 - 2⁴ = 13213319969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 13213319985.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1854859 + ... + 1861968.

It is an arithmetic number, because the mean of its divisors is an integer number (966375280).

Almost surely, 2^13213319985 is an apocalyptic number.

13213319985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13213319985 is a deficient number, since it is larger than the sum of its proper divisors (9979686735).

13213319985 is a wasteful number, since it uses less digits than its factorization.

13213319985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3716917 (or 3716914 counting only the distinct ones).

The product of its digits is 174960, while the sum is 45.

The spelling of 13213319985 in words is "thirteen billion, two hundred thirteen million, three hundred nineteen thousand, nine hundred eighty-five".