120010109 has 2 divisors, whose sum is σ = 120010110. Its totient is φ = 120010108.

The previous prime is 120010087. The next prime is 120010153. The reversal of 120010109 is 901010021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67404100 + 52606009 = 8210^2 + 7253^2 .

It is a cyclic number.

It is not a de Polignac number, because 120010109 - 2¹² = 120006013 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 120010093 and 120010102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120010169) 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, 60005054 + 60005055.

It is an arithmetic number, because the mean of its divisors is an integer number (60005055).

Almost surely, 2^120010109 is an apocalyptic number.

It is an amenable number.

120010109 is a deficient number, since it is larger than the sum of its proper divisors (1).

120010109 is an equidigital number, since it uses as much as digits as its factorization.

120010109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 120010109 is about 10954.9125509974. The cubic root of 120010109 is about 493.2562649982.

The spelling of 120010109 in words is "one hundred twenty million, ten thousand, one hundred nine".