120723090489 has 6 divisors (see below), whose sum is σ = 174377797386. Its totient is φ = 80482060320.

The previous prime is 120723090469. The next prime is 120723090497. The reversal of 120723090489 is 984090327021.

120723090489 is a `hidden beast` number, since 12 + 0 + 72 + 3 + 0 + 90 + 489 = 666.

It can be written as a sum of positive squares in only one way, i.e., 118487408400 + 2235682089 = 344220^2 + 47283^2 .

It is not a de Polignac number, because 120723090489 - 2⁷ = 120723090361 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (120723090469) 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 5 ways as a sum of consecutive naturals, for example, 6706838352 + ... + 6706838369.

It is an arithmetic number, because the mean of its divisors is an integer number (29062966231).

Almost surely, 2^120723090489 is an apocalyptic number.

It is an amenable number.

120723090489 is a deficient number, since it is larger than the sum of its proper divisors (53654706897).

120723090489 is a wasteful number, since it uses less digits than its factorization.

120723090489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13413676727 (or 13413676724 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 120723090489 in words is "one hundred twenty billion, seven hundred twenty-three million, ninety thousand, four hundred eighty-nine".