323131223 has 8 divisors (see below), whose sum is σ = 342470592. Its totient is φ = 303828736.

The previous prime is 323131199. The next prime is 323131243. The reversal of 323131223 is 322131323.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-323131223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 323131195 and 323131204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323131243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9986 + ... + 27312.

It is an arithmetic number, because the mean of its divisors is an integer number (42808824).

Almost surely, 2^323131223 is an apocalyptic number.

323131223 is a deficient number, since it is larger than the sum of its proper divisors (19339369).

323131223 is a wasteful number, since it uses less digits than its factorization.

323131223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18441.

The product of its digits is 648, while the sum is 20.

The square root of 323131223 is about 17975.8511064150. The cubic root of 323131223 is about 686.2141062599.

Adding to 323131223 its reverse (322131323), we get a palindrome (645262546).

The spelling of 323131223 in words is "three hundred twenty-three million, one hundred thirty-one thousand, two hundred twenty-three".