115243128000 has 2688 divisors, whose sum is σ = 584736122880. Its totient is φ = 21565440000.

The previous prime is 115243127999. The next prime is 115243128031. The reversal of 115243128000 is 821342511.

115243128000 is a `hidden beast` number, since 1 + 152 + 431 + 2 + 80 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 2810807980 + ... + 2810808020.

It is an arithmetic number, because the mean of its divisors is an integer number (217535760).

Almost surely, 2^115243128000 is an apocalyptic number.

115243128000 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 115243128000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292368061440).

115243128000 is an abundant number, since it is smaller than the sum of its proper divisors (469492994880).

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

115243128000 is a wasteful number, since it uses less digits than its factorization.

115243128000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121 (or 82 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The spelling of 115243128000 in words is "one hundred fifteen billion, two hundred forty-three million, one hundred twenty-eight thousand".