13321112100 has 72 divisors (see below), whose sum is σ = 38554199040. Its totient is φ = 3551210880.

The previous prime is 13321112081. The next prime is 13321112137. The reversal of 13321112100 is 121112331.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 13321112100.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1646866 + ... + 1654934.

Almost surely, 2^13321112100 is an apocalyptic number.

13321112100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13321112100 is an abundant number, since it is smaller than the sum of its proper divisors (25233086940).

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

13321112100 is a wasteful number, since it uses less digits than its factorization.

13321112100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13589 (or 13582 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 13321112100 its reverse (121112331), we get a palindrome (13442224431).

The spelling of 13321112100 in words is "thirteen billion, three hundred twenty-one million, one hundred twelve thousand, one hundred".