323312220132281 has 2 divisors, whose sum is σ = 323312220132282. Its totient is φ = 323312220132280.

The previous prime is 323312220132269. The next prime is 323312220132361. The reversal of 323312220132281 is 182231022213323.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 320934505476025 + 2377714656256 = 17914645^2 + 1541984^2 .

It is an emirp because it is prime and its reverse (182231022213323) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-323312220132281 is a prime.

It is a super-2 number, since 2×323312220132281² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (323312229132281) 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, 161656110066140 + 161656110066141.

It is an arithmetic number, because the mean of its divisors is an integer number (161656110066141).

Almost surely, 2^{323312220132281} is an apocalyptic number.

It is an amenable number.

323312220132281 is a deficient number, since it is larger than the sum of its proper divisors (1).

323312220132281 is an equidigital number, since it uses as much as digits as its factorization.

323312220132281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 323312220132281 in words is "three hundred twenty-three trillion, three hundred twelve billion, two hundred twenty million, one hundred thirty-two thousand, two hundred eighty-one".