320224231 has 2 divisors, whose sum is σ = 320224232. Its totient is φ = 320224230.

The previous prime is 320224213. The next prime is 320224241. The reversal of 320224231 is 132422023.

Together with previous prime (320224213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320224231 - 2⁵ = 320224199 is a prime.

It is a super-2 number, since 2×320224231² = 205087116239082722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320224199 and 320224208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320224241) 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, 160112115 + 160112116.

It is an arithmetic number, because the mean of its divisors is an integer number (160112116).

Almost surely, 2^320224231 is an apocalyptic number.

320224231 is a deficient number, since it is larger than the sum of its proper divisors (1).

320224231 is an equidigital number, since it uses as much as digits as its factorization.

320224231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 320224231 is about 17894.8101694318. The cubic root of 320224231 is about 684.1501037091.

Adding to 320224231 its reverse (132422023), we get a palindrome (452646254).

The spelling of 320224231 in words is "three hundred twenty million, two hundred twenty-four thousand, two hundred thirty-one".