321223303321099 has 2 divisors, whose sum is σ = 321223303321100. Its totient is φ = 321223303321098.

The previous prime is 321223303321097. The next prime is 321223303321111. The reversal of 321223303321099 is 990123303322123.

It is a weak prime.

It is an emirp because it is prime and its reverse (990123303322123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 321223303321099 - 2¹ = 321223303321097 is a prime.

Together with 321223303321097, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (321223303321097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160611651660549 + 160611651660550.

It is an arithmetic number, because the mean of its divisors is an integer number (160611651660550).

Almost surely, 2^{321223303321099} is an apocalyptic number.

321223303321099 is a deficient number, since it is larger than the sum of its proper divisors (1).

321223303321099 is an equidigital number, since it uses as much as digits as its factorization.

321223303321099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 314928, while the sum is 43.

The spelling of 321223303321099 in words is "three hundred twenty-one trillion, two hundred twenty-three billion, three hundred three million, three hundred twenty-one thousand, ninety-nine".