321300002321 has 4 divisors (see below), whose sum is σ = 321792039732. Its totient is φ = 320807964912.

The previous prime is 321300002299. The next prime is 321300002327. The reversal of 321300002321 is 123200003123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 123200003123 = 69929 ⋅1761787.

It can be written as a sum of positive squares in 2 ways, for example, as 35193760000 + 286106242321 = 187600^2 + 534889^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321300002321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 321300002321.

It is not an unprimeable number, because it can be changed into a prime (321300002327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246017726 + ... + 246019031.

It is an arithmetic number, because the mean of its divisors is an integer number (80448009933).

Almost surely, 2^321300002321 is an apocalyptic number.

It is an amenable number.

321300002321 is a deficient number, since it is larger than the sum of its proper divisors (492037411).

321300002321 is an equidigital number, since it uses as much as digits as its factorization.

321300002321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492037410.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 321300002321 its reverse (123200003123), we get a palindrome (444500005444).

The spelling of 321300002321 in words is "three hundred twenty-one billion, three hundred million, two thousand, three hundred twenty-one".