321223303321097 has 2 divisors, whose sum is σ = 321223303321098. Its totient is φ = 321223303321096.

The previous prime is 321223303321061. The next prime is 321223303321099. The reversal of 321223303321097 is 790123303322123.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 242387035238656 + 78836268082441 = 15568784^2 + 8878979^2 .

It is a cyclic number.

It is not a de Polignac number, because 321223303321097 - 2²⁴ = 321223286543881 is a prime.

Together with 321223303321099, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (321223303321099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160611651660548 + 160611651660549.

It is an arithmetic number, because the mean of its divisors is an integer number (160611651660549).

Almost surely, 2^{321223303321097} is an apocalyptic number.

It is an amenable number.

321223303321097 is a deficient number, since it is larger than the sum of its proper divisors (1).

321223303321097 is an equidigital number, since it uses as much as digits as its factorization.

321223303321097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 244944, while the sum is 41.

The spelling of 321223303321097 in words is "three hundred twenty-one trillion, two hundred twenty-three billion, three hundred three million, three hundred twenty-one thousand, ninety-seven".