12422400143 has 4 divisors (see below), whose sum is σ = 12435247440. Its totient is φ = 12409552848.

The previous prime is 12422400103. The next prime is 12422400149. The reversal of 12422400143 is 34100422421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34100422421 = 13 ⋅2623109417.

It is a cyclic number.

It is not a de Polignac number, because 12422400143 - 2¹² = 12422396047 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 (12422400149) 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, 6422198 + ... + 6424131.

It is an arithmetic number, because the mean of its divisors is an integer number (3108811860).

Almost surely, 2^12422400143 is an apocalyptic number.

12422400143 is a deficient number, since it is larger than the sum of its proper divisors (12847297).

12422400143 is an equidigital number, since it uses as much as digits as its factorization.

12422400143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12847296.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 12422400143 its reverse (34100422421), we get a palindrome (46522822564).

The spelling of 12422400143 in words is "twelve billion, four hundred twenty-two million, four hundred thousand, one hundred forty-three".