120200917 has 2 divisors, whose sum is σ = 120200918. Its totient is φ = 120200916.

The previous prime is 120200891. The next prime is 120200933. The reversal of 120200917 is 719002021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76720081 + 43480836 = 8759^2 + 6594^2 .

It is a cyclic number.

It is not a de Polignac number, because 120200917 - 2¹⁵ = 120168149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120200947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60100458 + 60100459.

It is an arithmetic number, because the mean of its divisors is an integer number (60100459).

Almost surely, 2^120200917 is an apocalyptic number.

It is an amenable number.

120200917 is a deficient number, since it is larger than the sum of its proper divisors (1).

120200917 is an equidigital number, since it uses as much as digits as its factorization.

120200917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 120200917 is about 10963.6178791492. The cubic root of 120200917 is about 493.5175413362.

Adding to 120200917 its reverse (719002021), we get a palindrome (839202938).

The spelling of 120200917 in words is "one hundred twenty million, two hundred thousand, nine hundred seventeen".