13120162320 has 80 divisors (see below), whose sum is σ = 42440890752. Its totient is φ = 3346590720.

The previous prime is 13120162277. The next prime is 13120162327. The reversal of 13120162320 is 2326102131.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (13120162327) 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, 1182901 + ... + 1193940.

Almost surely, 2^13120162320 is an apocalyptic number.

13120162320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13120162320 is an abundant number, since it is smaller than the sum of its proper divisors (29320728432).

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

13120162320 is a wasteful number, since it uses less digits than its factorization.

13120162320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2376880 (or 2376874 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 13120162320 its reverse (2326102131), we get a palindrome (15446264451).

The spelling of 13120162320 in words is "thirteen billion, one hundred twenty million, one hundred sixty-two thousand, three hundred twenty".