12144323423 has 8 divisors (see below), whose sum is σ = 12786478320. Its totient is φ = 11502466560.

The previous prime is 12144323393. The next prime is 12144323431. The reversal of 12144323423 is 32432344121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12144323423 - 2²⁶ = 12077214559 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 (12144323623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11711 + ... + 156287.

It is an arithmetic number, because the mean of its divisors is an integer number (1598309790).

Almost surely, 2^12144323423 is an apocalyptic number.

12144323423 is a deficient number, since it is larger than the sum of its proper divisors (642154897).

12144323423 is a wasteful number, since it uses less digits than its factorization.

12144323423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149017.

The product of its digits is 13824, while the sum is 29.

Adding to 12144323423 its reverse (32432344121), we get a palindrome (44576667544).

The spelling of 12144323423 in words is "twelve billion, one hundred forty-four million, three hundred twenty-three thousand, four hundred twenty-three".