321641141 has 2 divisors, whose sum is σ = 321641142. Its totient is φ = 321641140.

The previous prime is 321641129. The next prime is 321641143. The reversal of 321641141 is 141146123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 166539025 + 155102116 = 12905^2 + 12454^2 .

It is a cyclic number.

It is not a de Polignac number, because 321641141 - 2²² = 317446837 is a prime.

Together with 321641143, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321641143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160820570 + 160820571.

It is an arithmetic number, because the mean of its divisors is an integer number (160820571).

Almost surely, 2^321641141 is an apocalyptic number.

It is an amenable number.

321641141 is a deficient number, since it is larger than the sum of its proper divisors (1).

321641141 is an equidigital number, since it uses as much as digits as its factorization.

321641141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 23.

The square root of 321641141 is about 17934.3564423148. The cubic root of 321641141 is about 685.1576819233.

Adding to 321641141 its reverse (141146123), we get a palindrome (462787264).

The spelling of 321641141 in words is "three hundred twenty-one million, six hundred forty-one thousand, one hundred forty-one".