12423242343 has 16 divisors (see below), whose sum is σ = 17688268800. Its totient is φ = 7738614240.

The previous prime is 12423242323. The next prime is 12423242353. The reversal of 12423242343 is 34324232421.

It is not a de Polignac number, because 12423242343 - 2⁸ = 12423242087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12423242343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12423242323) 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, 2300463 + ... + 2305856.

It is an arithmetic number, because the mean of its divisors is an integer number (1105516800).

Almost surely, 2^12423242343 is an apocalyptic number.

12423242343 is a deficient number, since it is larger than the sum of its proper divisors (5265026457).

12423242343 is a wasteful number, since it uses less digits than its factorization.

12423242343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4606382.

The product of its digits is 27648, while the sum is 30.

Adding to 12423242343 its reverse (34324232421), we get a palindrome (46747474764).

The spelling of 12423242343 in words is "twelve billion, four hundred twenty-three million, two hundred forty-two thousand, three hundred forty-three".