113621027520 has 1792 divisors, whose sum is σ = 524353536000. Its totient is φ = 20483850240.

The previous prime is 113621027473. The next prime is 113621027557. The reversal of 113621027520 is 25720126311.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 894653697 + ... + 894653823.

It is an arithmetic number, because the mean of its divisors is an integer number (292608000).

Almost surely, 2^113621027520 is an apocalyptic number.

113621027520 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 113621027520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262176768000).

113621027520 is an abundant number, since it is smaller than the sum of its proper divisors (410732508480).

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

113621027520 is a wasteful number, since it uses less digits than its factorization.

113621027520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211 (or 187 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The spelling of 113621027520 in words is "one hundred thirteen billion, six hundred twenty-one million, twenty-seven thousand, five hundred twenty".