13021130320 has 40 divisors (see below), whose sum is σ = 33026323680. Its totient is φ = 4734956160.

The previous prime is 13021130303. The next prime is 13021130347. The reversal of 13021130320 is 2303112031.

It is a tau number, because it is divible by the number of its divisors (40).

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 = 13021130294 and 13021130303.

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, 7397490 + ... + 7399249.

It is an arithmetic number, because the mean of its divisors is an integer number (825658092).

Almost surely, 2^13021130320 is an apocalyptic number.

13021130320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13021130320 is an abundant number, since it is smaller than the sum of its proper divisors (20005193360).

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

13021130320 is a wasteful number, since it uses less digits than its factorization.

13021130320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14796763 (or 14796757 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 13021130320 its reverse (2303112031), we get a palindrome (15324242351).

It can be divided in two parts, 13021 and 130320, that added together give a palindrome (143341).

The spelling of 13021130320 in words is "thirteen billion, twenty-one million, one hundred thirty thousand, three hundred twenty".