321441121 has 2 divisors, whose sum is σ = 321441122. Its totient is φ = 321441120.

The previous prime is 321441079. The next prime is 321441137. The reversal of 321441121 is 121144123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 321126400 + 314721 = 17920^2 + 561^2 .

It is a cyclic number.

It is not a de Polignac number, because 321441121 - 2¹³ = 321432929 is a prime.

It is not a weakly prime, because it can be changed into another prime (321441181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160720560 + 160720561.

It is an arithmetic number, because the mean of its divisors is an integer number (160720561).

Almost surely, 2^321441121 is an apocalyptic number.

It is an amenable number.

321441121 is a deficient number, since it is larger than the sum of its proper divisors (1).

321441121 is an equidigital number, since it uses as much as digits as its factorization.

321441121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192, while the sum is 19.

The square root of 321441121 is about 17928.7791274253. The cubic root of 321441121 is about 685.0156254095.

Adding to 321441121 its reverse (121144123), we get a palindrome (442585244).

The spelling of 321441121 in words is "three hundred twenty-one million, four hundred forty-one thousand, one hundred twenty-one".