13111102330220 has 72 divisors (see below), whose sum is σ = 29064671221824. Its totient is φ = 4967397856512.

The previous prime is 13111102330189. The next prime is 13111102330247. The reversal of 13111102330220 is 2203320111131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 13111102330192 and 13111102330201.

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, 35461229 + ... + 35829051.

It is an arithmetic number, because the mean of its divisors is an integer number (403675989192).

Almost surely, 2^{13111102330220} is an apocalyptic number.

13111102330220 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 13111102330220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14532335610912).

13111102330220 is an abundant number, since it is smaller than the sum of its proper divisors (15953568891604).

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

13111102330220 is a wasteful number, since it uses less digits than its factorization.

13111102330220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372807 (or 372786 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 13111102330220 its reverse (2203320111131), we get a palindrome (15314422441351).

The spelling of 13111102330220 in words is "thirteen trillion, one hundred eleven billion, one hundred two million, three hundred thirty thousand, two hundred twenty".