1320113332321 has 8 divisors (see below), whose sum is σ = 1509638627840. Its totient is φ = 1130822455968.

The previous prime is 1320113332313. The next prime is 1320113332379. The reversal of 1320113332321 is 1232333110231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1320113332321 - 2³ = 1320113332313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1320113332621) by changing a digit.

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, 58592721 + ... + 58615246.

It is an arithmetic number, because the mean of its divisors is an integer number (188704828480).

Almost surely, 2^{1320113332321} is an apocalyptic number.

It is an amenable number.

1320113332321 is a deficient number, since it is larger than the sum of its proper divisors (189525295519).

1320113332321 is a wasteful number, since it uses less digits than its factorization.

1320113332321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117209583.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 1320113332321 its reverse (1232333110231), we get a palindrome (2552446442552).

The spelling of 1320113332321 in words is "one trillion, three hundred twenty billion, one hundred thirteen million, three hundred thirty-two thousand, three hundred twenty-one".