13313231021100 has 72 divisors (see below), whose sum is σ = 38520421132480. Its totient is φ = 3550120649280.

The previous prime is 13313231021099. The next prime is 13313231021117. The reversal of 13313231021100 is 112013231331.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14722659 + ... + 15600741.

Almost surely, 2^{13313231021100} is an apocalyptic number.

13313231021100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13313231021100 is an abundant number, since it is smaller than the sum of its proper divisors (25207190111380).

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

13313231021100 is a wasteful number, since it uses less digits than its factorization.

13313231021100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928639 (or 928632 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 13313231021100 its reverse (112013231331), we get a palindrome (13425244252431).

The spelling of 13313231021100 in words is "thirteen trillion, three hundred thirteen billion, two hundred thirty-one million, twenty-one thousand, one hundred".