13321020100120 has 128 divisors (see below), whose sum is σ = 30398859982080. Its totient is φ = 5253050880000.

The previous prime is 13321020100051. The next prime is 13321020100133. The reversal of 13321020100120 is 2100102012331.

It is a junction number, because it is equal to n+sod(n) for n = 13321020100094 and 13321020100103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2882711410 + ... + 2882716030.

It is an arithmetic number, because the mean of its divisors is an integer number (237491093610).

Almost surely, 2^{13321020100120} is an apocalyptic number.

13321020100120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13321020100120 is an abundant number, since it is smaller than the sum of its proper divisors (17077839881960).

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

13321020100120 is a wasteful number, since it uses less digits than its factorization.

13321020100120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7637 (or 7633 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 13321020100120 its reverse (2100102012331), we get a palindrome (15421122112451).

The spelling of 13321020100120 in words is "thirteen trillion, three hundred twenty-one billion, twenty million, one hundred thousand, one hundred twenty".