320202232012321 has 16 divisors (see below), whose sum is σ = 322872406930944. Its totient is φ = 317536910722944.

The previous prime is 320202232012303. The next prime is 320202232012387. The reversal of 320202232012321 is 123210232202023.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320202232012321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320202232012391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4469128720 + ... + 4469200366.

It is an arithmetic number, because the mean of its divisors is an integer number (20179525433184).

Almost surely, 2^{320202232012321} is an apocalyptic number.

It is an amenable number.

320202232012321 is a deficient number, since it is larger than the sum of its proper divisors (2670174918623).

320202232012321 is a wasteful number, since it uses less digits than its factorization.

320202232012321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105000.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 320202232012321 its reverse (123210232202023), we get a palindrome (443412464214344).

The spelling of 320202232012321 in words is "three hundred twenty trillion, two hundred two billion, two hundred thirty-two million, twelve thousand, three hundred twenty-one".