323323021381 has 2 divisors, whose sum is σ = 323323021382. Its totient is φ = 323323021380.

The previous prime is 323323021363. The next prime is 323323021459. The reversal of 323323021381 is 183120323323.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 258114802500 + 65208218881 = 508050^2 + 255359^2 .

It is a cyclic number.

It is not a de Polignac number, because 323323021381 - 2⁹ = 323323020869 is a prime.

It is a super-2 number, since 2×323323021381² (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 (323323021361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161661510690 + 161661510691.

It is an arithmetic number, because the mean of its divisors is an integer number (161661510691).

Almost surely, 2^323323021381 is an apocalyptic number.

It is an amenable number.

323323021381 is a deficient number, since it is larger than the sum of its proper divisors (1).

323323021381 is an equidigital number, since it uses as much as digits as its factorization.

323323021381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 31.

The spelling of 323323021381 in words is "three hundred twenty-three billion, three hundred twenty-three million, twenty-one thousand, three hundred eighty-one".