128001108 has 48 divisors (see below), whose sum is σ = 309886976. Its totient is φ = 41078880.

The previous prime is 128001101. The next prime is 128001121. The reversal of 128001108 is 801100821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128001101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82185 + ... + 83727.

Almost surely, 2^128001108 is an apocalyptic number.

It is an amenable number.

128001108 is an abundant number, since it is smaller than the sum of its proper divisors (181885868).

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

128001108 is a wasteful number, since it uses less digits than its factorization.

128001108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1804 (or 1802 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

The square root of 128001108 is about 11313.7574660234. The cubic root of 128001108 is about 503.9698741126.

Adding to 128001108 its reverse (801100821), we get a palindrome (929101929).

The spelling of 128001108 in words is "one hundred twenty-eight million, one thousand, one hundred eight".