321201203233201 has 2 divisors, whose sum is σ = 321201203233202. Its totient is φ = 321201203233200.

The previous prime is 321201203233171. The next prime is 321201203233219. The reversal of 321201203233201 is 102332302102123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 290498788200625 + 30702415032576 = 17044025^2 + 5540976^2 .

It is a cyclic number.

It is not a de Polignac number, because 321201203233201 - 2¹⁵ = 321201203200433 is a prime.

It is not a weakly prime, because it can be changed into another prime (321201203233241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160600601616600 + 160600601616601.

It is an arithmetic number, because the mean of its divisors is an integer number (160600601616601).

Almost surely, 2^{321201203233201} is an apocalyptic number.

It is an amenable number.

321201203233201 is a deficient number, since it is larger than the sum of its proper divisors (1).

321201203233201 is an equidigital number, since it uses as much as digits as its factorization.

321201203233201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 321201203233201 its reverse (102332302102123), we get a palindrome (423533505335324).

The spelling of 321201203233201 in words is "three hundred twenty-one trillion, two hundred one billion, two hundred three million, two hundred thirty-three thousand, two hundred one".