13022120320 has 64 divisors (see below), whose sum is σ = 33961116240. Its totient is φ = 4735313920.

The previous prime is 13022120291. The next prime is 13022120333. The reversal of 13022120320 is 2302122031.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 13022120294 and 13022120303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 917827 + ... + 931906.

Almost surely, 2^13022120320 is an apocalyptic number.

13022120320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13022120320 is an abundant number, since it is smaller than the sum of its proper divisors (20938995920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13022120320 is a wasteful number, since it uses less digits than its factorization.

13022120320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1849763 (or 1849751 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 13022120320 its reverse (2302122031), we get a palindrome (15324242351).

The spelling of 13022120320 in words is "thirteen billion, twenty-two million, one hundred twenty thousand, three hundred twenty".