23217323 has 4 divisors (see below), whose sum is σ = 23262408. Its totient is φ = 23172240.

The previous prime is 23217301. The next prime is 23217331. The reversal of 23217323 is 32371232.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23217323 - 2¹² = 23213227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23217353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21761 + ... + 22802.

It is an arithmetic number, because the mean of its divisors is an integer number (5815602).

Almost surely, 2^23217323 is an apocalyptic number.

23217323 is a deficient number, since it is larger than the sum of its proper divisors (45085).

23217323 is an equidigital number, since it uses as much as digits as its factorization.

23217323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45084.

The product of its digits is 1512, while the sum is 23.

The square root of 23217323 is about 4818.4357420225. The cubic root of 23217323 is about 285.2795983925.

Adding to 23217323 its reverse (32371232), we get a palindrome (55588555).

The spelling of 23217323 in words is "twenty-three million, two hundred seventeen thousand, three hundred twenty-three".