422395123 has 2 divisors, whose sum is σ = 422395124. Its totient is φ = 422395122.

The previous prime is 422395111. The next prime is 422395153. The reversal of 422395123 is 321593224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 422395123 - 2²¹ = 420297971 is a prime.

It is not a weakly prime, because it can be changed into another prime (422395153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211197561 + 211197562.

It is an arithmetic number, because the mean of its divisors is an integer number (211197562).

Almost surely, 2^422395123 is an apocalyptic number.

422395123 is a deficient number, since it is larger than the sum of its proper divisors (1).

422395123 is an equidigital number, since it uses as much as digits as its factorization.

422395123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 31.

The square root of 422395123 is about 20552.2534774170. The cubic root of 422395123 is about 750.3080944568.

The spelling of 422395123 in words is "four hundred twenty-two million, three hundred ninety-five thousand, one hundred twenty-three".