120530171 has 2 divisors, whose sum is σ = 120530172. Its totient is φ = 120530170.

The previous prime is 120530159. The next prime is 120530191. The reversal of 120530171 is 171035021.

It is an a-pointer prime, because the next prime (120530191) can be obtained adding 120530171 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120530171 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (120530141) 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, 60265085 + 60265086.

It is an arithmetic number, because the mean of its divisors is an integer number (60265086).

Almost surely, 2^120530171 is an apocalyptic number.

120530171 is a deficient number, since it is larger than the sum of its proper divisors (1).

120530171 is an equidigital number, since it uses as much as digits as its factorization.

120530171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 120530171 is about 10978.6233654316. The cubic root of 120530171 is about 493.9677444559.

Adding to 120530171 its reverse (171035021), we get a palindrome (291565192).

The spelling of 120530171 in words is "one hundred twenty million, five hundred thirty thousand, one hundred seventy-one".