323140223 has 4 divisors (see below), whose sum is σ = 369303120. Its totient is φ = 276977328.

The previous prime is 323140219. The next prime is 323140231. The reversal of 323140223 is 322041323.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322041323 = 1217 ⋅264619.

It is a cyclic number.

It is not a de Polignac number, because 323140223 - 2² = 323140219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 323140195 and 323140204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323140253) 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 3 ways as a sum of consecutive naturals, for example, 23081438 + ... + 23081451.

It is an arithmetic number, because the mean of its divisors is an integer number (92325780).

Almost surely, 2^323140223 is an apocalyptic number.

323140223 is a deficient number, since it is larger than the sum of its proper divisors (46162897).

323140223 is an equidigital number, since it uses as much as digits as its factorization.

323140223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46162896.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 323140223 is about 17976.1014405237. The cubic root of 323140223 is about 686.2204771181.

Adding to 323140223 its reverse (322041323), we get a palindrome (645181546).

The spelling of 323140223 in words is "three hundred twenty-three million, one hundred forty thousand, two hundred twenty-three".