120771128 has 32 divisors (see below), whose sum is σ = 241995600. Its totient is φ = 56305152.

The previous prime is 120771113. The next prime is 120771139. The reversal of 120771128 is 821177021.

It is a self number, because there is not a number n which added to its sum of digits gives 120771128.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10751 + ... + 18897.

Almost surely, 2^120771128 is an apocalyptic number.

It is an amenable number.

120771128 is an abundant number, since it is smaller than the sum of its proper divisors (121224472).

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

120771128 is a wasteful number, since it uses less digits than its factorization.

120771128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8279 (or 8275 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 29.

The square root of 120771128 is about 10989.5918031563. The cubic root of 120771128 is about 494.2966960006.

The spelling of 120771128 in words is "one hundred twenty million, seven hundred seventy-one thousand, one hundred twenty-eight".