323143586221 has 2 divisors, whose sum is σ = 323143586222. Its totient is φ = 323143586220.

The previous prime is 323143586209. The next prime is 323143586251. The reversal of 323143586221 is 122685341323.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201251829321 + 121891756900 = 448611^2 + 349130^2 .

It is a cyclic number.

It is not a de Polignac number, because 323143586221 - 2⁵ = 323143586189 is a prime.

It is a super-2 number, since 2×323143586221² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (323143586201) 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, 161571793110 + 161571793111.

It is an arithmetic number, because the mean of its divisors is an integer number (161571793111).

Almost surely, 2^323143586221 is an apocalyptic number.

It is an amenable number.

323143586221 is a deficient number, since it is larger than the sum of its proper divisors (1).

323143586221 is an equidigital number, since it uses as much as digits as its factorization.

323143586221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 40.

The spelling of 323143586221 in words is "three hundred twenty-three billion, one hundred forty-three million, five hundred eighty-six thousand, two hundred twenty-one".