323130211223321 has 2 divisors, whose sum is σ = 323130211223322. Its totient is φ = 323130211223320.

The previous prime is 323130211223213. The next prime is 323130211223329. The reversal of 323130211223321 is 123322112031323.

Together with previous prime (323130211223213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 322403966383321 + 726244840000 = 17955611^2 + 852200^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-323130211223321 is a prime.

It is not a weakly prime, because it can be changed into another prime (323130211223329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161565105611660 + 161565105611661.

It is an arithmetic number, because the mean of its divisors is an integer number (161565105611661).

Almost surely, 2^{323130211223321} is an apocalyptic number.

It is an amenable number.

323130211223321 is a deficient number, since it is larger than the sum of its proper divisors (1).

323130211223321 is an equidigital number, since it uses as much as digits as its factorization.

323130211223321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 323130211223321 its reverse (123322112031323), we get a palindrome (446452323254644).

The spelling of 323130211223321 in words is "three hundred twenty-three trillion, one hundred thirty billion, two hundred eleven million, two hundred twenty-three thousand, three hundred twenty-one".