13321030031320 has 128 divisors (see below), whose sum is σ = 32852902233600. Its totient is φ = 4820976230400.

The previous prime is 13321030031299. The next prime is 13321030031329. The reversal of 13321030031320 is 2313003012331.

13321030031320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 13321030031291 and 13321030031300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13321030031329) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83955021 + ... + 84113539.

It is an arithmetic number, because the mean of its divisors is an integer number (256663298700).

Almost surely, 2^{13321030031320} is an apocalyptic number.

13321030031320 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 13321030031320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16426451116800).

13321030031320 is an abundant number, since it is smaller than the sum of its proper divisors (19531872202280).

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

13321030031320 is a wasteful number, since it uses less digits than its factorization.

13321030031320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159449 (or 159445 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 13321030031320 its reverse (2313003012331), we get a palindrome (15634033043651).

The spelling of 13321030031320 in words is "thirteen trillion, three hundred twenty-one billion, thirty million, thirty-one thousand, three hundred twenty".