21102302311200 has 432 divisors, whose sum is σ = 82288752620256. Its totient is φ = 5045630054400.

The previous prime is 21102302311187. The next prime is 21102302311213. The reversal of 21102302311200 is 211320320112.

21102302311200 is a `hidden beast` number, since 2 + 1 + 1 + 0 + 230 + 231 + 1 + 200 = 666.

It is an interprime number because it is at equal distance from previous prime (21102302311187) and next prime (21102302311213).

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

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3956647 + ... + 7606553.

It is an arithmetic number, because the mean of its divisors is an integer number (190483223658).

Almost surely, 2^{21102302311200} is an apocalyptic number.

21102302311200 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 21102302311200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41144376310128).

21102302311200 is an abundant number, since it is smaller than the sum of its proper divisors (61186450309056).

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

21102302311200 is a wasteful number, since it uses less digits than its factorization.

21102302311200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3650017 (or 3650001 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 21102302311200 its reverse (211320320112), we get a palindrome (21313622631312).

The spelling of 21102302311200 in words is "twenty-one trillion, one hundred two billion, three hundred two million, three hundred eleven thousand, two hundred".