128353191122 has 30 divisors (see below), whose sum is σ = 208712608323. Its totient is φ = 59200414728.

The previous prime is 128353191097. The next prime is 128353191149. The reversal of 128353191122 is 221191353821.

It can be written as a sum of positive squares in 3 ways, for example, as 2247001 + 128350944121 = 1499^2 + 358261^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=253331.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 85625129 + ... + 85626627.

Almost surely, 2^128353191122 is an apocalyptic number.

128353191122 is a deficient number, since it is larger than the sum of its proper divisors (80359417201).

128353191122 is an frugal number, since it uses more digits than its factorization.

128353191122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3052 (or 1514 counting only the distinct ones).

The product of its digits is 25920, while the sum is 38.

The spelling of 128353191122 in words is "one hundred twenty-eight billion, three hundred fifty-three million, one hundred ninety-one thousand, one hundred twenty-two".