21104309083200 has 336 divisors, whose sum is σ = 79218086098944. Its totient is φ = 4818539980800.

The previous prime is 21104309083189. The next prime is 21104309083229. The reversal of 21104309083200 is 238090340112.

It is a tau number, because it is divible by the number of its divisors (336).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30264867 + ... + 30954333.

Almost surely, 2^{21104309083200} is an apocalyptic number.

21104309083200 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 21104309083200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39609043049472).

21104309083200 is an abundant number, since it is smaller than the sum of its proper divisors (58113777015744).

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

21104309083200 is a wasteful number, since it uses less digits than its factorization.

21104309083200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690410 (or 690395 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The spelling of 21104309083200 in words is "twenty-one trillion, one hundred four billion, three hundred nine million, eighty-three thousand, two hundred".