321223303322149 has 2 divisors, whose sum is σ = 321223303322150. Its totient is φ = 321223303322148.

The previous prime is 321223303322081. The next prime is 321223303322153. The reversal of 321223303322149 is 941223303322123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 288849399624900 + 32373903697249 = 16995570^2 + 5689807^2 .

It is an emirp because it is prime and its reverse (941223303322123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 321223303322149 - 2⁹ = 321223303321637 is a prime.

It is a super-3 number, since 3×321223303322149³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321223303322249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160611651661074 + 160611651661075.

It is an arithmetic number, because the mean of its divisors is an integer number (160611651661075).

Almost surely, 2^{321223303322149} is an apocalyptic number.

It is an amenable number.

321223303322149 is a deficient number, since it is larger than the sum of its proper divisors (1).

321223303322149 is an equidigital number, since it uses as much as digits as its factorization.

321223303322149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 40.

The spelling of 321223303322149 in words is "three hundred twenty-one trillion, two hundred twenty-three billion, three hundred three million, three hundred twenty-two thousand, one hundred forty-nine".