12144202423 has 4 divisors (see below), whose sum is σ = 12672211248. Its totient is φ = 11616193600.

The previous prime is 12144202417. The next prime is 12144202463. The reversal of 12144202423 is 32420244121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32420244121 = 1877 ⋅17272373.

It is a cyclic number.

It is not a de Polignac number, because 12144202423 - 2¹⁷ = 12144071351 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 (12144202463) 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, 264004378 + ... + 264004423.

It is an arithmetic number, because the mean of its divisors is an integer number (3168052812).

Almost surely, 2^12144202423 is an apocalyptic number.

12144202423 is a deficient number, since it is larger than the sum of its proper divisors (528008825).

12144202423 is an equidigital number, since it uses as much as digits as its factorization.

12144202423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528008824.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 12144202423 its reverse (32420244121), we get a palindrome (44564446544).

The spelling of 12144202423 in words is "twelve billion, one hundred forty-four million, two hundred two thousand, four hundred twenty-three".