13331121311020 has 24 divisors (see below), whose sum is σ = 28010349665424. Its totient is φ = 5329592350656.

The previous prime is 13331121310987. The next prime is 13331121311033. The reversal of 13331121311020 is 2011312113331.

It is a junction number, because it is equal to n+sod(n) for n = 13331121310982 and 13331121311000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178472587 + ... + 178547266.

It is an arithmetic number, because the mean of its divisors is an integer number (1167097902726).

Almost surely, 2^{13331121311020} is an apocalyptic number.

13331121311020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13331121311020 is an abundant number, since it is smaller than the sum of its proper divisors (14679228354404).

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

13331121311020 is a wasteful number, since it uses less digits than its factorization.

13331121311020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357021729 (or 357021727 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 13331121311020 its reverse (2011312113331), we get a palindrome (15342433424351).

The spelling of 13331121311020 in words is "thirteen trillion, three hundred thirty-one billion, one hundred twenty-one million, three hundred eleven thousand, twenty".