321121033201 has 2 divisors, whose sum is σ = 321121033202. Its totient is φ = 321121033200.

The previous prime is 321121033193. The next prime is 321121033237. The reversal of 321121033201 is 102330121123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 298688482576 + 22432550625 = 546524^2 + 149775^2 .

It is a cyclic number.

It is not a de Polignac number, because 321121033201 - 2³ = 321121033193 is a prime.

It is not a weakly prime, because it can be changed into another prime (321121033501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160560516600 + 160560516601.

It is an arithmetic number, because the mean of its divisors is an integer number (160560516601).

Almost surely, 2^321121033201 is an apocalyptic number.

It is an amenable number.

321121033201 is a deficient number, since it is larger than the sum of its proper divisors (1).

321121033201 is an equidigital number, since it uses as much as digits as its factorization.

321121033201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 321121033201 its reverse (102330121123), we get a palindrome (423451154324).

The spelling of 321121033201 in words is "three hundred twenty-one billion, one hundred twenty-one million, thirty-three thousand, two hundred one".