12422312143 has 4 divisors (see below), whose sum is σ = 12725295408. Its totient is φ = 12119328880.

The previous prime is 12422312141. The next prime is 12422312159. The reversal of 12422312143 is 34121322421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34121322421 = 17 ⋅2007136613.

It is a cyclic number.

It is not a de Polignac number, because 12422312143 - 2¹ = 12422312141 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 (12422312141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151491571 + ... + 151491652.

It is an arithmetic number, because the mean of its divisors is an integer number (3181323852).

Almost surely, 2^12422312143 is an apocalyptic number.

12422312143 is a deficient number, since it is larger than the sum of its proper divisors (302983265).

12422312143 is an equidigital number, since it uses as much as digits as its factorization.

12422312143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302983264.

The product of its digits is 2304, while the sum is 25.

Adding to 12422312143 its reverse (34121322421), we get a palindrome (46543634564).

The spelling of 12422312143 in words is "twelve billion, four hundred twenty-two million, three hundred twelve thousand, one hundred forty-three".