13320131031220 has 144 divisors (see below), whose sum is σ = 30601957800960. Its totient is φ = 4867722083328.

The previous prime is 13320131031217. The next prime is 13320131031227. The reversal of 13320131031220 is 2213013102331.

13320131031220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13320131031220² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13320131031191 and 13320131031200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13320131031227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 131468541 + ... + 131569819.

It is an arithmetic number, because the mean of its divisors is an integer number (212513595840).

Almost surely, 2^{13320131031220} is an apocalyptic number.

13320131031220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13320131031220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15300978900480).

13320131031220 is an abundant number, since it is smaller than the sum of its proper divisors (17281826769740).

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

13320131031220 is a wasteful number, since it uses less digits than its factorization.

13320131031220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101714 (or 101699 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 13320131031220 its reverse (2213013102331), we get a palindrome (15533144133551).

The spelling of 13320131031220 in words is "thirteen trillion, three hundred twenty billion, one hundred thirty-one million, thirty-one thousand, two hundred twenty".