12443023 has 4 divisors (see below), whose sum is σ = 12984048. Its totient is φ = 11902000.

The previous prime is 12442999. The next prime is 12443029. The reversal of 12443023 is 32034421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32034421 = 79 ⋅405499.

It is a cyclic number.

It is not a de Polignac number, because 12443023 - 2¹³ = 12434831 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 (12443029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270478 + ... + 270523.

It is an arithmetic number, because the mean of its divisors is an integer number (3246012).

Almost surely, 2^12443023 is an apocalyptic number.

12443023 is a deficient number, since it is larger than the sum of its proper divisors (541025).

12443023 is an equidigital number, since it uses as much as digits as its factorization.

12443023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541024.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 12443023 is about 3527.4669381867. The cubic root of 12443023 is about 231.7262861468.

Adding to 12443023 its reverse (32034421), we get a palindrome (44477444).

The spelling of 12443023 in words is "twelve million, four hundred forty-three thousand, twenty-three".