128703110720 has 56 divisors (see below), whose sum is σ = 307639785024. Its totient is φ = 51285464576.

The previous prime is 128703110707. The next prime is 128703110737. The reversal of 128703110720 is 27011307821.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 680474 + ... + 848793.

Almost surely, 2^128703110720 is an apocalyptic number.

128703110720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128703110720 is an abundant number, since it is smaller than the sum of its proper divisors (178936674304).

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

128703110720 is a wasteful number, since it uses less digits than its factorization.

128703110720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529547 (or 1529537 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 32.

The spelling of 128703110720 in words is "one hundred twenty-eight billion, seven hundred three million, one hundred ten thousand, seven hundred twenty".