323321421473 has 2 divisors, whose sum is σ = 323321421474. Its totient is φ = 323321421472.

The previous prime is 323321421361. The next prime is 323321421491. The reversal of 323321421473 is 374124123323.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 171141070864 + 152180350609 = 413692^2 + 390103^2 .

It is an emirp because it is prime and its reverse (374124123323) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 323321421473 - 2¹⁶ = 323321355937 is a prime.

It is not a weakly prime, because it can be changed into another prime (313321421473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161660710736 + 161660710737.

It is an arithmetic number, because the mean of its divisors is an integer number (161660710737).

Almost surely, 2^323321421473 is an apocalyptic number.

It is an amenable number.

323321421473 is a deficient number, since it is larger than the sum of its proper divisors (1).

323321421473 is an equidigital number, since it uses as much as digits as its factorization.

323321421473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 35.

Adding to 323321421473 its reverse (374124123323), we get a palindrome (697445544796).

The spelling of 323321421473 in words is "three hundred twenty-three billion, three hundred twenty-one million, four hundred twenty-one thousand, four hundred seventy-three".