120809384389 has 16 divisors (see below), whose sum is σ = 128552054400. Its totient is φ = 113314953024.

The previous prime is 120809384359. The next prime is 120809384401. The reversal of 120809384389 is 983483908021.

It is a cyclic number.

It is not a de Polignac number, because 120809384389 - 2²³ = 120800995781 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 (120809384359) 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 15 ways as a sum of consecutive naturals, for example, 607222 + ... + 781240.

It is an arithmetic number, because the mean of its divisors is an integer number (8034503400).

Almost surely, 2^120809384389 is an apocalyptic number.

It is an amenable number.

120809384389 is a deficient number, since it is larger than the sum of its proper divisors (7742670011).

120809384389 is a wasteful number, since it uses less digits than its factorization.

120809384389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174732.

The product of its (nonzero) digits is 2985984, while the sum is 55.

The spelling of 120809384389 in words is "one hundred twenty billion, eight hundred nine million, three hundred eighty-four thousand, three hundred eighty-nine".