113291386855920 has 1280 divisors, whose sum is σ = 496179869122560. Its totient is φ = 23113083801600.

The previous prime is 113291386855919. The next prime is 113291386855937. The reversal of 113291386855920 is 29558683192311.

113291386855920 is a `hidden beast` number, since 1 + 1 + 3 + 2 + 9 + 1 + 38 + 6 + 8 + 5 + 592 + 0 = 666.

113291386855920 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 8085881715 + ... + 8085895725.

It is an arithmetic number, because the mean of its divisors is an integer number (387640522752).

Almost surely, 2^{113291386855920} is an apocalyptic number.

113291386855920 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 113291386855920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248089934561280).

113291386855920 is an abundant number, since it is smaller than the sum of its proper divisors (382888482266640).

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

113291386855920 is a wasteful number, since it uses less digits than its factorization.

113291386855920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15411 (or 15399 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 63.

The spelling of 113291386855920 in words is "one hundred thirteen trillion, two hundred ninety-one billion, three hundred eighty-six million, eight hundred fifty-five thousand, nine hundred twenty".