323311231 has 2 divisors, whose sum is σ = 323311232. Its totient is φ = 323311230.

The previous prime is 323311181. The next prime is 323311237. The reversal of 323311231 is 132113323.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 323311231 - 2¹⁹ = 322786943 is a prime.

It is a super-2 number, since 2×323311231² = 209060304181470722, which contains 22 as substring.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 323311199 and 323311208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (323311237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161655615 + 161655616.

It is an arithmetic number, because the mean of its divisors is an integer number (161655616).

Almost surely, 2^323311231 is an apocalyptic number.

323311231 is a deficient number, since it is larger than the sum of its proper divisors (1).

323311231 is an equidigital number, since it uses as much as digits as its factorization.

323311231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 324, while the sum is 19.

The square root of 323311231 is about 17980.8573488585. The cubic root of 323311231 is about 686.3415066159.

Adding to 323311231 its reverse (132113323), we get a palindrome (455424554).

The spelling of 323311231 in words is "three hundred twenty-three million, three hundred eleven thousand, two hundred thirty-one".