120561112 has 32 divisors (see below), whose sum is σ = 258815520. Its totient is φ = 51575040.

The previous prime is 120561079. The next prime is 120561143. The reversal of 120561112 is 211165021.

It is a self number, because there is not a number n which added to its sum of digits gives 120561112.

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 7 ways as a sum of consecutive naturals, for example, 35388 + ... + 38644.

It is an arithmetic number, because the mean of its divisors is an integer number (8087985).

Almost surely, 2^120561112 is an apocalyptic number.

It is an amenable number.

120561112 is an abundant number, since it is smaller than the sum of its proper divisors (138254408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120561112 is a wasteful number, since it uses less digits than its factorization.

120561112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3931 (or 3927 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 120561112 is about 10980.0324225387. The cubic root of 120561112 is about 494.0100092494.

The spelling of 120561112 in words is "one hundred twenty million, five hundred sixty-one thousand, one hundred twelve".