128103022112 has 162 divisors, whose sum is σ = 283997903679. Its totient is φ = 56852789760.

The previous prime is 128103022057. The next prime is 128103022129. The reversal of 128103022112 is 211220301821.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 4173676816 + 123929345296 = 64604^2 + 352036^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=253084.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 815942738 + ... + 815942894.

Almost surely, 2^128103022112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128103022112

128103022112 is an abundant number, since it is smaller than the sum of its proper divisors (155894881567).

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

128103022112 is an equidigital number, since it uses as much as digits as its factorization.

128103022112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 128103022112 its reverse (211220301821), we get a palindrome (339323323933).

The spelling of 128103022112 in words is "one hundred twenty-eight billion, one hundred three million, twenty-two thousand, one hundred twelve".