4042423120217 has 2 divisors, whose sum is σ = 4042423120218. Its totient is φ = 4042423120216.

The previous prime is 4042423120201. The next prime is 4042423120223. The reversal of 4042423120217 is 7120213242404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3813158358361 + 229264761856 = 1952731^2 + 478816^2 .

It is a cyclic number.

It is not a de Polignac number, because 4042423120217 - 2⁴ = 4042423120201 is a prime.

It is not a weakly prime, because it can be changed into another prime (4042423120247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2021211560108 + 2021211560109.

It is an arithmetic number, because the mean of its divisors is an integer number (2021211560109).

Almost surely, 2^{4042423120217} is an apocalyptic number.

It is an amenable number.

4042423120217 is a deficient number, since it is larger than the sum of its proper divisors (1).

4042423120217 is an equidigital number, since it uses as much as digits as its factorization.

4042423120217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 32.

The spelling of 4042423120217 in words is "four trillion, forty-two billion, four hundred twenty-three million, one hundred twenty thousand, two hundred seventeen".