120000844128 has 192 divisors, whose sum is σ = 364673933568. Its totient is φ = 34147614720.

The previous prime is 120000844097. The next prime is 120000844129. The reversal of 120000844128 is 821448000021.

It is a junction number, because it is equal to n+sod(n) for n = 120000844095 and 120000844104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120000844129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8196751 + ... + 8211377.

It is an arithmetic number, because the mean of its divisors is an integer number (1899343404).

Almost surely, 2^120000844128 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 120000844128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182336966784).

120000844128 is an abundant number, since it is smaller than the sum of its proper divisors (244673089440).

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

120000844128 is a wasteful number, since it uses less digits than its factorization.

120000844128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15125 (or 15117 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 30.

Adding to 120000844128 its reverse (821448000021), we get a palindrome (941448844149).

The spelling of 120000844128 in words is "one hundred twenty billion, eight hundred forty-four thousand, one hundred twenty-eight".