128011108 has 6 divisors (see below), whose sum is σ = 224019446. Its totient is φ = 64005552.

The previous prime is 128011087. The next prime is 128011111. The reversal of 128011108 is 801110821.

It can be written as a sum of positive squares in only one way, i.e., 114746944 + 13264164 = 10712^2 + 3642^2 .

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 as a sum of consecutive naturals, namely, 16001385 + ... + 16001392.

Almost surely, 2^128011108 is an apocalyptic number.

It is an amenable number.

128011108 is a deficient number, since it is larger than the sum of its proper divisors (96008338).

128011108 is a wasteful number, since it uses less digits than its factorization.

128011108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32002781 (or 32002779 counting only the distinct ones).

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

The square root of 128011108 is about 11314.1993972176. The cubic root of 128011108 is about 503.9829978727.

Adding to 128011108 its reverse (801110821), we get a palindrome (929121929).

The spelling of 128011108 in words is "one hundred twenty-eight million, eleven thousand, one hundred eight".