120319961 has 2 divisors, whose sum is σ = 120319962.
Its totient is φ = 120319960.
The previous prime is 120319957. The next prime is 120320003. The reversal of 120319961 is 169913021.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 76230361 + 44089600 = 8731^2 + 6640^2
It is a cyclic number.
It is not a de Polignac number, because 120319961 - 22 = 120319957 is a prime.
It is a Sophie Germain prime.
It is a Curzon number.
It is not a weakly prime, because it can be changed into another prime (120319921) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60159980 + 60159981.
It is an arithmetic number, because the mean of its divisors is an integer number (60159981).
Almost surely, 2120319961 is an apocalyptic number.
It is an amenable number.
120319961 is a deficient number, since it is larger than the sum of its proper divisors (1).
120319961 is an equidigital number, since it uses as much as digits as its factorization.
120319961 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 2916, while the sum is 32.
The square root of 120319961 is about 10969.0455829119.
The cubic root of 120319961 is about 493.6804100823.
The spelling of 120319961 in words is "one hundred twenty million, three hundred nineteen thousand, nine hundred sixty-one".