120912317 has 2 divisors, whose sum is σ = 120912318. Its totient is φ = 120912316.

The previous prime is 120912293. The next prime is 120912349. The reversal of 120912317 is 713219021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106729561 + 14182756 = 10331^2 + 3766^2 .

It is a cyclic number.

It is not a de Polignac number, because 120912317 - 2⁸ = 120912061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120912217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60456158 + 60456159.

It is an arithmetic number, because the mean of its divisors is an integer number (60456159).

Almost surely, 2^120912317 is an apocalyptic number.

It is an amenable number.

120912317 is a deficient number, since it is larger than the sum of its proper divisors (1).

120912317 is an equidigital number, since it uses as much as digits as its factorization.

120912317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 120912317 is about 10996.0136867867. The cubic root of 120912317 is about 494.4892422353.

The spelling of 120912317 in words is "one hundred twenty million, nine hundred twelve thousand, three hundred seventeen".