321324233 has 2 divisors, whose sum is σ = 321324234. Its totient is φ = 321324232.

The previous prime is 321324221. The next prime is 321324239. The reversal of 321324233 is 332423123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 287370304 + 33953929 = 16952^2 + 5827^2 .

It is an emirp because it is prime and its reverse (332423123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 321324233 - 2¹² = 321320137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 321324199 and 321324208.

It is not a weakly prime, because it can be changed into another prime (321324239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160662116 + 160662117.

It is an arithmetic number, because the mean of its divisors is an integer number (160662117).

Almost surely, 2^321324233 is an apocalyptic number.

It is an amenable number.

321324233 is a deficient number, since it is larger than the sum of its proper divisors (1).

321324233 is an equidigital number, since it uses as much as digits as its factorization.

321324233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 23.

The square root of 321324233 is about 17925.5190440891. The cubic root of 321324233 is about 684.9325829188.

Adding to 321324233 its reverse (332423123), we get a palindrome (653747356).

The spelling of 321324233 in words is "three hundred twenty-one million, three hundred twenty-four thousand, two hundred thirty-three".