120805101 has 10 divisors (see below), whose sum is σ = 180462062. Its totient is φ = 80536680.

The previous prime is 120805081. The next prime is 120805123. The reversal of 120805101 is 101508021.

It can be written as a sum of positive squares in only one way, i.e., 107122500 + 13682601 = 10350^2 + 3699^2 .

It is not a de Polignac number, because 120805101 - 2⁷ = 120804973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120805501) 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 in 9 ways as a sum of consecutive naturals, for example, 745630 + ... + 745791.

Almost surely, 2^120805101 is an apocalyptic number.

It is an amenable number.

120805101 is a deficient number, since it is larger than the sum of its proper divisors (59656961).

120805101 is an equidigital number, since it uses as much as digits as its factorization.

120805101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1491433 (or 1491424 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 120805101 is about 10991.1373842747. The cubic root of 120805101 is about 494.3430403203.

The spelling of 120805101 in words is "one hundred twenty million, eight hundred five thousand, one hundred one".