128823050120 has 64 divisors (see below), whose sum is σ = 296966027520. Its totient is φ = 50271496704.

The previous prime is 128823050047. The next prime is 128823050123. The reversal of 128823050120 is 21050328821.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (128823050123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 478979 + ... + 697901.

It is an arithmetic number, because the mean of its divisors is an integer number (4640094180).

Almost surely, 2^128823050120 is an apocalyptic number.

128823050120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128823050120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148483013760).

128823050120 is an abundant number, since it is smaller than the sum of its proper divisors (168142977400).

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

128823050120 is a wasteful number, since it uses less digits than its factorization.

128823050120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219294 (or 219290 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

Adding to 128823050120 its reverse (21050328821), we get a palindrome (149873378941).

The spelling of 128823050120 in words is "one hundred twenty-eight billion, eight hundred twenty-three million, fifty thousand, one hundred twenty".