23443123 has 4 divisors (see below), whose sum is σ = 25574328. Its totient is φ = 21311920.

The previous prime is 23443111. The next prime is 23443129. The reversal of 23443123 is 32134432.

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-23443123 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23443094 and 23443103.

It is not an unprimeable number, because it can be changed into a prime (23443129) 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, 1065586 + ... + 1065607.

It is an arithmetic number, because the mean of its divisors is an integer number (6393582).

Almost surely, 2^23443123 is an apocalyptic number.

23443123 is a deficient number, since it is larger than the sum of its proper divisors (2131205).

23443123 is a wasteful number, since it uses less digits than its factorization.

23443123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2131204.

The product of its digits is 1728, while the sum is 22.

The square root of 23443123 is about 4841.8098888742. The cubic root of 23443123 is about 286.2014449530.

Adding to 23443123 its reverse (32134432), we get a palindrome (55577555).

The spelling of 23443123 in words is "twenty-three million, four hundred forty-three thousand, one hundred twenty-three".