113230215252 has 288 divisors, whose sum is σ = 377948712960. Its totient is φ = 28783797120.

The previous prime is 113230215233. The next prime is 113230215289. The reversal of 113230215252 is 252512032311.

113230215252 is a `hidden beast` number, since 1 + 132 + 3 + 0 + 2 + 1 + 525 + 2 = 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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3501574 + ... + 3533762.

It is an arithmetic number, because the mean of its divisors is an integer number (1312321920).

Almost surely, 2^113230215252 is an apocalyptic number.

113230215252 is a gapful number since it is divisible by the number (12) 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 113230215252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188974356480).

113230215252 is an abundant number, since it is smaller than the sum of its proper divisors (264718497708).

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

113230215252 is a wasteful number, since it uses less digits than its factorization.

113230215252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32273 (or 32259 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 113230215252 its reverse (252512032311), we get a palindrome (365742247563).

The spelling of 113230215252 in words is "one hundred thirteen billion, two hundred thirty million, two hundred fifteen thousand, two hundred fifty-two".