120128112 has 60 divisors (see below), whose sum is σ = 362058424. Its totient is φ = 36961920.

The previous prime is 120128081. The next prime is 120128117. The reversal of 120128112 is 211821021.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120128117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30214 + ... + 33957.

Almost surely, 2^120128112 is an apocalyptic number.

120128112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120128112 is an abundant number, since it is smaller than the sum of its proper divisors (241930312).

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

120128112 is a wasteful number, since it uses less digits than its factorization.

120128112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64198 (or 64189 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

The square root of 120128112 is about 10960.2970762658. The cubic root of 120128112 is about 493.4178809724.

Adding to 120128112 its reverse (211821021), we get a palindrome (331949133).

The spelling of 120128112 in words is "one hundred twenty million, one hundred twenty-eight thousand, one hundred twelve".