128247347112 has 32 divisors (see below), whose sum is σ = 320641260480. Its totient is φ = 42746063360.

The previous prime is 128247347083. The next prime is 128247347119. The reversal of 128247347112 is 211743742821.

It is not an unprimeable number, because it can be changed into a prime (128247347119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165973 + ... + 532955.

It is an arithmetic number, because the mean of its divisors is an integer number (10020039390).

Almost surely, 2^128247347112 is an apocalyptic number.

128247347112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

128247347112 is an abundant number, since it is smaller than the sum of its proper divisors (192393913368).

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

128247347112 is a wasteful number, since it uses less digits than its factorization.

128247347112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381553 (or 381549 counting only the distinct ones).

The product of its digits is 150528, while the sum is 42.

The spelling of 128247347112 in words is "one hundred twenty-eight billion, two hundred forty-seven million, three hundred forty-seven thousand, one hundred twelve".