12323235243 has 16 divisors (see below), whose sum is σ = 17936352000. Its totient is φ = 7463774880.

The previous prime is 12323235209. The next prime is 12323235259. The reversal of 12323235243 is 34253232321.

It is a happy number.

It is not a de Polignac number, because 12323235243 - 2³³ = 3733300651 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12323235243.

It is not an unprimeable number, because it can be changed into a prime (12323235293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69423 + ... + 171656.

It is an arithmetic number, because the mean of its divisors is an integer number (1121022000).

Almost surely, 2^12323235243 is an apocalyptic number.

12323235243 is a deficient number, since it is larger than the sum of its proper divisors (5613116757).

12323235243 is a wasteful number, since it uses less digits than its factorization.

12323235243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242642.

The product of its digits is 25920, while the sum is 30.

Adding to 12323235243 its reverse (34253232321), we get a palindrome (46576467564).

The spelling of 12323235243 in words is "twelve billion, three hundred twenty-three million, two hundred thirty-five thousand, two hundred forty-three".