321334243 has 2 divisors, whose sum is σ = 321334244. Its totient is φ = 321334242.

The previous prime is 321334241. The next prime is 321334259. The reversal of 321334243 is 342433123.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 321334243 - 2¹ = 321334241 is a prime.

Together with 321334241, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (321334241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160667121 + 160667122.

It is an arithmetic number, because the mean of its divisors is an integer number (160667122).

Almost surely, 2^321334243 is an apocalyptic number.

321334243 is a deficient number, since it is larger than the sum of its proper divisors (1).

321334243 is an equidigital number, since it uses as much as digits as its factorization.

321334243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 25.

The square root of 321334243 is about 17925.7982527976. The cubic root of 321334243 is about 684.9396952612.

Adding to 321334243 its reverse (342433123), we get a palindrome (663767366).

The spelling of 321334243 in words is "three hundred twenty-one million, three hundred thirty-four thousand, two hundred forty-three".