322320231 has 12 divisors (see below), whose sum is σ = 465765352. Its totient is φ = 214791696.

The previous prime is 322320223. The next prime is 322320259. The reversal of 322320231 is 132023223.

It is a happy number.

322320231 is a `hidden beast` number, since 322 + 320 + 23 + 1 = 666.

It is not a de Polignac number, because 322320231 - 2³ = 322320223 is a prime.

It is a super-2 number, since 2×322320231² = 207780662623786722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (322320631) 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 in 11 ways as a sum of consecutive naturals, for example, 21765 + ... + 33441.

Almost surely, 2^322320231 is an apocalyptic number.

322320231 is a deficient number, since it is larger than the sum of its proper divisors (143445121).

322320231 is a wasteful number, since it uses less digits than its factorization.

322320231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14750 (or 14747 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 322320231 is about 17953.2791155265. The cubic root of 322320231 is about 685.6395405321.

Adding to 322320231 its reverse (132023223), we get a palindrome (454343454).

The spelling of 322320231 in words is "three hundred twenty-two million, three hundred twenty thousand, two hundred thirty-one".