112857131520 has 1120 divisors, whose sum is σ = 475307471232. Its totient is φ = 25153929216.

The previous prime is 112857131507. The next prime is 112857131531. The reversal of 112857131520 is 25131758211.

112857131520 is a `hidden beast` number, since 1 + 1 + 2 + 8 + 571 + 31 + 52 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 692374959 + ... + 692375121.

Almost surely, 2^112857131520 is an apocalyptic number.

112857131520 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 112857131520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237653735616).

112857131520 is an abundant number, since it is smaller than the sum of its proper divisors (362450339712).

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

112857131520 is an frugal number, since it uses more digits than its factorization.

112857131520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 36.

Adding to 112857131520 its reverse (25131758211), we get a palindrome (137988889731).

The spelling of 112857131520 in words is "one hundred twelve billion, eight hundred fifty-seven million, one hundred thirty-one thousand, five hundred twenty".