120002109 has 16 divisors (see below), whose sum is σ = 167215104. Its totient is φ = 76406000.

The previous prime is 120002089. The next prime is 120002111. The reversal of 120002109 is 901200021.

It is a happy number.

It is not a de Polignac number, because 120002109 - 2¹² = 119998013 is a prime.

It is a super-3 number, since 3×120002109³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120004109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78664 + ... + 80174.

It is an arithmetic number, because the mean of its divisors is an integer number (10450944).

Almost surely, 2^120002109 is an apocalyptic number.

It is an amenable number.

120002109 is a deficient number, since it is larger than the sum of its proper divisors (47212995).

120002109 is a wasteful number, since it uses less digits than its factorization.

120002109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2688.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 120002109 is about 10954.5474119199. The cubic root of 120002109 is about 493.2453044276.

The spelling of 120002109 in words is "one hundred twenty million, two thousand, one hundred nine".