321352943 has 2 divisors, whose sum is σ = 321352944. Its totient is φ = 321352942.

The previous prime is 321352937. The next prime is 321352951. The reversal of 321352943 is 349253123.

It is a weak prime.

It is an emirp because it is prime and its reverse (349253123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 321352943 - 2²⁰ = 320304367 is a prime.

It is a super-2 number, since 2×321352943² = 206535427949522498, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321352243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160676471 + 160676472.

It is an arithmetic number, because the mean of its divisors is an integer number (160676472).

Almost surely, 2^321352943 is an apocalyptic number.

321352943 is a deficient number, since it is larger than the sum of its proper divisors (1).

321352943 is an equidigital number, since it uses as much as digits as its factorization.

321352943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 32.

The square root of 321352943 is about 17926.3198398333. The cubic root of 321352943 is about 684.9529816592.

The spelling of 321352943 in words is "three hundred twenty-one million, three hundred fifty-two thousand, nine hundred forty-three".