12420227143 has 2 divisors, whose sum is σ = 12420227144. Its totient is φ = 12420227142.

The previous prime is 12420227137. The next prime is 12420227189. The reversal of 12420227143 is 34172202421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12420227143 - 2⁵ = 12420227111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12420227843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6210113571 + 6210113572.

It is an arithmetic number, because the mean of its divisors is an integer number (6210113572).

Almost surely, 2^12420227143 is an apocalyptic number.

12420227143 is a deficient number, since it is larger than the sum of its proper divisors (1).

12420227143 is an equidigital number, since it uses as much as digits as its factorization.

12420227143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 28.

Adding to 12420227143 its reverse (34172202421), we get a palindrome (46592429564).

The spelling of 12420227143 in words is "twelve billion, four hundred twenty million, two hundred twenty-seven thousand, one hundred forty-three".