12322544143 has 16 divisors (see below), whose sum is σ = 15214086720. Its totient is φ = 9718926336.

The previous prime is 12322544081. The next prime is 12322544173. The reversal of 12322544143 is 34144522321.

It is a de Polignac number, because none of the positive numbers 2^k-12322544143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12322544173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184738 + ... + 242431.

It is an arithmetic number, because the mean of its divisors is an integer number (950880420).

Almost surely, 2^12322544143 is an apocalyptic number.

12322544143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12322544143 is a deficient number, since it is larger than the sum of its proper divisors (2891542577).

12322544143 is a wasteful number, since it uses less digits than its factorization.

12322544143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427506.

The product of its digits is 23040, while the sum is 31.

The spelling of 12322544143 in words is "twelve billion, three hundred twenty-two million, five hundred forty-four thousand, one hundred forty-three".