13122032320 has 84 divisors (see below), whose sum is σ = 32978256624. Its totient is φ = 4972515840.

The previous prime is 13122032311. The next prime is 13122032353. The reversal of 13122032320 is 2323022131.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58725 + ... + 172315.

Almost surely, 2^13122032320 is an apocalyptic number.

13122032320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13122032320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16489128312).

13122032320 is an abundant number, since it is smaller than the sum of its proper divisors (19856224304).

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

13122032320 is a wasteful number, since it uses less digits than its factorization.

13122032320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113646 (or 113617 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 13122032320 its reverse (2323022131), we get a palindrome (15445054451).

The spelling of 13122032320 in words is "thirteen billion, one hundred twenty-two million, thirty-two thousand, three hundred twenty".