13322320985 has 4 divisors (see below), whose sum is σ = 15986785188. Its totient is φ = 10657856784.

The previous prime is 13322320969. The next prime is 13322320993. The reversal of 13322320985 is 58902322331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58902322331 = 23539 ⋅2502329.

It can be written as a sum of positive squares in 2 ways, for example, as 2420246416 + 10902074569 = 49196^2 + 104413^2 .

It is a cyclic number.

It is not a de Polignac number, because 13322320985 - 2⁴ = 13322320969 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1332232094 + ... + 1332232103.

It is an arithmetic number, because the mean of its divisors is an integer number (3996696297).

Almost surely, 2^13322320985 is an apocalyptic number.

It is an amenable number.

13322320985 is a deficient number, since it is larger than the sum of its proper divisors (2664464203).

13322320985 is an equidigital number, since it uses as much as digits as its factorization.

13322320985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2664464202.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 13322320985 in words is "thirteen billion, three hundred twenty-two million, three hundred twenty thousand, nine hundred eighty-five".