128031168 has 28 divisors (see below), whose sum is σ = 338749640. Its totient is φ = 42676992.

The previous prime is 128031161. The next prime is 128031191. The reversal of 128031168 is 861130821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128031161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333223 + ... + 333606.

Almost surely, 2^128031168 is an apocalyptic number.

It is an amenable number.

128031168 is an abundant number, since it is smaller than the sum of its proper divisors (210718472).

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

128031168 is an equidigital number, since it uses as much as digits as its factorization.

128031168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666844 (or 666834 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 128031168 is about 11315.0858591528. The cubic root of 128031168 is about 504.0093220750.

Adding to 128031168 its reverse (861130821), we get a palindrome (989161989).

The spelling of 128031168 in words is "one hundred twenty-eight million, thirty-one thousand, one hundred sixty-eight".