128000120235 has 16 divisors (see below), whose sum is σ = 220554053664. Its totient is φ = 63015443712.

The previous prime is 128000120203. The next prime is 128000120243. The reversal of 128000120235 is 532021000821.

It is not a de Polignac number, because 128000120235 - 2⁵ = 128000120203 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 328205242 + ... + 328205631.

It is an arithmetic number, because the mean of its divisors is an integer number (13784628354).

Almost surely, 2^128000120235 is an apocalyptic number.

128000120235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

128000120235 is a deficient number, since it is larger than the sum of its proper divisors (92553933429).

128000120235 is a wasteful number, since it uses less digits than its factorization.

128000120235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656410894.

The product of its (nonzero) digits is 960, while the sum is 24.

The spelling of 128000120235 in words is "one hundred twenty-eight billion, one hundred twenty thousand, two hundred thirty-five".