21030112303200 has 3456 divisors, whose sum is σ = 108297628508160. Its totient is φ = 3693065011200.

The previous prime is 21030112303169. The next prime is 21030112303219. The reversal of 21030112303200 is 230321103012.

21030112303200 is a `hidden beast` number, since 2 + 1 + 0 + 301 + 12 + 30 + 320 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

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 575 ways as a sum of consecutive naturals, for example, 4533326481 + ... + 4533331119.

It is an arithmetic number, because the mean of its divisors is an integer number (31336119360).

Almost surely, 2^{21030112303200} is an apocalyptic number.

21030112303200 is a gapful number since it is divisible by the number (20) 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 21030112303200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54148814254080).

21030112303200 is an abundant number, since it is smaller than the sum of its proper divisors (87267516204960).

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

21030112303200 is a wasteful number, since it uses less digits than its factorization.

21030112303200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4750 (or 4734 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21030112303200 its reverse (230321103012), we get a palindrome (21260433406212).

It can be divided in two parts, 21030112 and 303200, that added together give a palindrome (21333312).

The spelling of 21030112303200 in words is "twenty-one trillion, thirty billion, one hundred twelve million, three hundred three thousand, two hundred".