13321320530 has 64 divisors (see below), whose sum is σ = 29800161792. Its totient is φ = 4182451200.

The previous prime is 13321320521. The next prime is 13321320583. The reversal of 13321320530 is 3502312331.

It is a junction number, because it is equal to n+sod(n) for n = 13321320496 and 13321320505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107246 + ... + 195305.

It is an arithmetic number, because the mean of its divisors is an integer number (465627528).

Almost surely, 2^13321320530 is an apocalyptic number.

13321320530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13321320530 is an abundant number, since it is smaller than the sum of its proper divisors (16478841262).

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

13321320530 is a wasteful number, since it uses less digits than its factorization.

13321320530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302619.

The product of its (nonzero) digits is 1620, while the sum is 23.

Adding to 13321320530 its reverse (3502312331), we get a palindrome (16823632861).

The spelling of 13321320530 in words is "thirteen billion, three hundred twenty-one million, three hundred twenty thousand, five hundred thirty".