12320001321 has 8 divisors (see below), whose sum is σ = 16525032384. Its totient is φ = 8164152240.

The previous prime is 12320001319. The next prime is 12320001341. The reversal of 12320001321 is 12310002321.

12320001321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12320001321 - 2¹ = 12320001319 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12320001321.

It is not an unprimeable number, because it can be changed into a prime (12320001341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12294910 + ... + 12295911.

It is an arithmetic number, because the mean of its divisors is an integer number (2065629048).

Almost surely, 2^12320001321 is an apocalyptic number.

It is an amenable number.

12320001321 is a deficient number, since it is larger than the sum of its proper divisors (4205031063).

12320001321 is a wasteful number, since it uses less digits than its factorization.

12320001321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24590991.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 12320001321 its reverse (12310002321), we get a palindrome (24630003642).

It can be divided in two parts, 1232000 and 1321, that added together give a palindrome (1233321).

The spelling of 12320001321 in words is "twelve billion, three hundred twenty million, one thousand, three hundred twenty-one".