12543323 has 4 divisors (see below), whose sum is σ = 13508208. Its totient is φ = 11578440.

The previous prime is 12543319. The next prime is 12543329. The reversal of 12543323 is 32334521.

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 12543323 - 2² = 12543319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12543329) 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, 482423 + ... + 482448.

It is an arithmetic number, because the mean of its divisors is an integer number (3377052).

Almost surely, 2^12543323 is an apocalyptic number.

12543323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12543323 is a deficient number, since it is larger than the sum of its proper divisors (964885).

12543323 is an equidigital number, since it uses as much as digits as its factorization.

12543323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964884.

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

The square root of 12543323 is about 3541.6554039037. The cubic root of 12543323 is about 232.3472492632.

Adding to 12543323 its reverse (32334521), we get a palindrome (44877844).

The spelling of 12543323 in words is "twelve million, five hundred forty-three thousand, three hundred twenty-three".