12429022427 has 2 divisors, whose sum is σ = 12429022428. Its totient is φ = 12429022426.

The previous prime is 12429022379. The next prime is 12429022429. The reversal of 12429022427 is 72422092421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12429022427 - 2¹⁰ = 12429021403 is a prime.

Together with 12429022429, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12429022429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6214511213 + 6214511214.

It is an arithmetic number, because the mean of its divisors is an integer number (6214511214).

Almost surely, 2^12429022427 is an apocalyptic number.

12429022427 is a deficient number, since it is larger than the sum of its proper divisors (1).

12429022427 is an equidigital number, since it uses as much as digits as its factorization.

12429022427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 35.

The spelling of 12429022427 in words is "twelve billion, four hundred twenty-nine million, twenty-two thousand, four hundred twenty-seven".