128111008 has 24 divisors (see below), whose sum is σ = 252588672. Its totient is φ = 63961536.

The previous prime is 128110979. The next prime is 128111023. The reversal of 128111008 is 800111821.

It is a self number, because there is not a number n which added to its sum of digits gives 128111008.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22641 + ... + 27727.

It is an arithmetic number, because the mean of its divisors is an integer number (10524528).

Almost surely, 2^128111008 is an apocalyptic number.

It is an amenable number.

128111008 is a deficient number, since it is larger than the sum of its proper divisors (124477664).

128111008 is an equidigital number, since it uses as much as digits as its factorization.

128111008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5884 (or 5876 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 22.

The square root of 128111008 is about 11318.6133426317. The cubic root of 128111008 is about 504.1140667327.

Adding to 128111008 its reverse (800111821), we get a palindrome (928222829).

The spelling of 128111008 in words is "one hundred twenty-eight million, one hundred eleven thousand, eight".