113224736520 has 256 divisors, whose sum is σ = 431665920000. Its totient is φ = 25859927808.

The previous prime is 113224736519. The next prime is 113224736543. The reversal of 113224736520 is 25637422311.

113224736520 is a `hidden beast` number, since 1 + 1 + 32 + 247 + 365 + 20 = 666.

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 63 ways as a sum of consecutive naturals, for example, 11206431 + ... + 11216529.

It is an arithmetic number, because the mean of its divisors is an integer number (1686195000).

Almost surely, 2^113224736520 is an apocalyptic number.

113224736520 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 113224736520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215832960000).

113224736520 is an abundant number, since it is smaller than the sum of its proper divisors (318441183480).

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

113224736520 is a wasteful number, since it uses less digits than its factorization.

113224736520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11609 (or 11599 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The spelling of 113224736520 in words is "one hundred thirteen billion, two hundred twenty-four million, seven hundred thirty-six thousand, five hundred twenty".