23001223 has 4 divisors (see below), whose sum is σ = 26287120. Its totient is φ = 19715328.

The previous prime is 23001211. The next prime is 23001227. The reversal of 23001223 is 32210032.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23001223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23001227) 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, 1642938 + ... + 1642951.

It is an arithmetic number, because the mean of its divisors is an integer number (6571780).

Almost surely, 2^23001223 is an apocalyptic number.

23001223 is a deficient number, since it is larger than the sum of its proper divisors (3285897).

23001223 is an equidigital number, since it uses as much as digits as its factorization.

23001223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3285896.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 23001223 is about 4795.9590281820. The cubic root of 23001223 is about 284.3917385470.

Adding to 23001223 its reverse (32210032), we get a palindrome (55211255).

The spelling of 23001223 in words is "twenty-three million, one thousand, two hundred twenty-three".