120042340217 has 2 divisors, whose sum is σ = 120042340218. Its totient is φ = 120042340216.

The previous prime is 120042340183. The next prime is 120042340259. The reversal of 120042340217 is 712043240021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118901522041 + 1140818176 = 344821^2 + 33776^2 .

It is a cyclic number.

It is not a de Polignac number, because 120042340217 - 2³² = 115747372921 is a prime.

It is not a weakly prime, because it can be changed into another prime (120032340217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60021170108 + 60021170109.

It is an arithmetic number, because the mean of its divisors is an integer number (60021170109).

Almost surely, 2^120042340217 is an apocalyptic number.

It is an amenable number.

120042340217 is a deficient number, since it is larger than the sum of its proper divisors (1).

120042340217 is an equidigital number, since it uses as much as digits as its factorization.

120042340217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 26.

Adding to 120042340217 its reverse (712043240021), we get a palindrome (832085580238).

The spelling of 120042340217 in words is "one hundred twenty billion, forty-two million, three hundred forty thousand, two hundred seventeen".