12323543 has 4 divisors (see below), whose sum is σ = 12336528. Its totient is φ = 12310560.

The previous prime is 12323537. The next prime is 12323551. The reversal of 12323543 is 34532321.

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 12323543 - 2¹⁶ = 12258007 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 (12323503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4946 + ... + 7007.

It is an arithmetic number, because the mean of its divisors is an integer number (3084132).

Almost surely, 2^12323543 is an apocalyptic number.

12323543 is a deficient number, since it is larger than the sum of its proper divisors (12985).

12323543 is a wasteful number, since it uses less digits than its factorization.

12323543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12984.

The product of its digits is 2160, while the sum is 23.

The square root of 12323543 is about 3510.4904215793. The cubic root of 12323543 is about 230.9822078586.

Adding to 12323543 its reverse (34532321), we get a palindrome (46855864).

The spelling of 12323543 in words is "twelve million, three hundred twenty-three thousand, five hundred forty-three".