128124722300 has 144 divisors (see below), whose sum is σ = 293531212800. Its totient is φ = 48447759360.

The previous prime is 128124722291. The next prime is 128124722309. The reversal of 128124722300 is 3227421821.

It is an interprime number because it is at equal distance from previous prime (128124722291) and next prime (128124722309).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128124722309) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 155679689 + ... + 155680511.

It is an arithmetic number, because the mean of its divisors is an integer number (2038411200).

Almost surely, 2^128124722300 is an apocalyptic number.

128124722300 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 128124722300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146765606400).

128124722300 is an abundant number, since it is smaller than the sum of its proper divisors (165406490500).

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

128124722300 is a wasteful number, since it uses less digits than its factorization.

128124722300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1572 (or 1565 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The spelling of 128124722300 in words is "one hundred twenty-eight billion, one hundred twenty-four million, seven hundred twenty-two thousand, three hundred".