13321320302120 has 32 divisors (see below), whose sum is σ = 29976214988520. Its totient is φ = 5327951354880.

The previous prime is 13321320302107. The next prime is 13321320302233. The reversal of 13321320302120 is 2120302312331.

It can be written as a sum of positive squares in 4 ways, for example, as 13271055558916 + 50264743204 = 3642946^2 + 224198^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17649677 + ... + 18388956.

Almost surely, 2^{13321320302120} is an apocalyptic number.

13321320302120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13321320302120 is an abundant number, since it is smaller than the sum of its proper divisors (16654894686400).

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

13321320302120 is a wasteful number, since it uses less digits than its factorization.

13321320302120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36047885 (or 36047881 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 13321320302120 its reverse (2120302312331), we get a palindrome (15441622614451).

The spelling of 13321320302120 in words is "thirteen trillion, three hundred twenty-one billion, three hundred twenty million, three hundred two thousand, one hundred twenty".