12144413423 has 4 divisors (see below), whose sum is σ = 12149103168. Its totient is φ = 12139723680.

The previous prime is 12144413357. The next prime is 12144413447. The reversal of 12144413423 is 32431444121.

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 12144413423 - 2⁸ = 12144413167 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 (12144413123) 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, 2340986 + ... + 2346167.

It is an arithmetic number, because the mean of its divisors is an integer number (3037275792).

Almost surely, 2^12144413423 is an apocalyptic number.

12144413423 is a deficient number, since it is larger than the sum of its proper divisors (4689745).

12144413423 is an equidigital number, since it uses as much as digits as its factorization.

12144413423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4689744.

The product of its digits is 9216, while the sum is 29.

Adding to 12144413423 its reverse (32431444121), we get a palindrome (44575857544).

The spelling of 12144413423 in words is "twelve billion, one hundred forty-four million, four hundred thirteen thousand, four hundred twenty-three".