120730880205 has 24 divisors (see below), whose sum is σ = 225364310808. Its totient is φ = 59436740736.

The previous prime is 120730880173. The next prime is 120730880219. The reversal of 120730880205 is 502088037021.

It can be written as a sum of positive squares in 4 ways, for example, as 12909277161 + 107821603044 = 113619^2 + 328362^2 .

It is not a de Polignac number, because 120730880205 - 2⁵ = 120730880173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120730880205.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 103188202 + ... + 103189371.

It is an arithmetic number, because the mean of its divisors is an integer number (9390179617).

Almost surely, 2^120730880205 is an apocalyptic number.

120730880205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120730880205 is a deficient number, since it is larger than the sum of its proper divisors (104633430603).

120730880205 is a wasteful number, since it uses less digits than its factorization.

120730880205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206377597 (or 206377594 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The spelling of 120730880205 in words is "one hundred twenty billion, seven hundred thirty million, eight hundred eighty thousand, two hundred five".