323312217 has 4 divisors (see below), whose sum is σ = 431082960. Its totient is φ = 215541476.

The previous prime is 323312177. The next prime is 323312221. The reversal of 323312217 is 712213323.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 712213323 = 3 ⋅237404441.

It is a cyclic number.

It is not a de Polignac number, because 323312217 - 2⁷ = 323312089 is a prime.

It is a super-2 number, since 2×323312217² = 209061579322910178, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (323312287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53885367 + ... + 53885372.

It is an arithmetic number, because the mean of its divisors is an integer number (107770740).

Almost surely, 2^323312217 is an apocalyptic number.

It is an amenable number.

323312217 is a deficient number, since it is larger than the sum of its proper divisors (107770743).

323312217 is a wasteful number, since it uses less digits than its factorization.

323312217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107770742.

The product of its digits is 1512, while the sum is 24.

The square root of 323312217 is about 17980.8847668851. The cubic root of 323312217 is about 686.3422043255.

The spelling of 323312217 in words is "three hundred twenty-three million, three hundred twelve thousand, two hundred seventeen".