23201223 has 16 divisors (see below), whose sum is σ = 32668800. Its totient is φ = 14605920.

The previous prime is 23201197. The next prime is 23201251. The reversal of 23201223 is 32210232.

It is not a de Polignac number, because 23201223 - 2⁶ = 23201159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23201263) 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 15 ways as a sum of consecutive naturals, for example, 27573 + ... + 28401.

It is an arithmetic number, because the mean of its divisors is an integer number (2041800).

Almost surely, 2^23201223 is an apocalyptic number.

23201223 is a deficient number, since it is larger than the sum of its proper divisors (9467577).

23201223 is a wasteful number, since it uses less digits than its factorization.

23201223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 23201223 is about 4816.7647856212. The cubic root of 23201223 is about 285.2136409806.

Adding to 23201223 its reverse (32210232), we get a palindrome (55411455).

Subtracting 23201223 from its reverse (32210232), we obtain a palindrome (9009009).

The spelling of 23201223 in words is "twenty-three million, two hundred one thousand, two hundred twenty-three".