13311200123320 has 128 divisors (see below), whose sum is σ = 34645548407040. Its totient is φ = 4549032970240.

The previous prime is 13311200123237. The next prime is 13311200123339. The reversal of 13311200123320 is 2332100211331.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 13311200123291 and 13311200123300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3806079 + ... + 6411601.

It is an arithmetic number, because the mean of its divisors is an integer number (270668346930).

Almost surely, 2^{13311200123320} is an apocalyptic number.

13311200123320 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 13311200123320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17322774203520).

13311200123320 is an abundant number, since it is smaller than the sum of its proper divisors (21334348283720).

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

13311200123320 is a wasteful number, since it uses less digits than its factorization.

13311200123320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2606245 (or 2606241 counting only the distinct ones).

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

Adding to 13311200123320 its reverse (2332100211331), we get a palindrome (15643300334651).

The spelling of 13311200123320 in words is "thirteen trillion, three hundred eleven billion, two hundred million, one hundred twenty-three thousand, three hundred twenty".