12432142799 has 4 divisors (see below), whose sum is σ = 12581927736. Its totient is φ = 12282357864.

The previous prime is 12432142777. The next prime is 12432142817. The reversal of 12432142799 is 99724123421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99724123421 = 13 ⋅7671086417.

It is a cyclic number.

It is not a de Polignac number, because 12432142799 - 2³² = 8137175503 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 (12432142769) 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, 74892344 + ... + 74892509.

It is an arithmetic number, because the mean of its divisors is an integer number (3145481934).

Almost surely, 2^12432142799 is an apocalyptic number.

12432142799 is a deficient number, since it is larger than the sum of its proper divisors (149784937).

12432142799 is an equidigital number, since it uses as much as digits as its factorization.

12432142799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149784936.

The product of its digits is 217728, while the sum is 44.

The spelling of 12432142799 in words is "twelve billion, four hundred thirty-two million, one hundred forty-two thousand, seven hundred ninety-nine".