21110301300000 has 432 divisors, whose sum is σ = 76133005425792. Its totient is φ = 5117640000000.

The previous prime is 21110301299977. The next prime is 21110301300013. The reversal of 21110301300000 is 310301112.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 36009225 + ... + 36590775.

It is an arithmetic number, because the mean of its divisors is an integer number (176233808856).

Almost surely, 2^{21110301300000} is an apocalyptic number.

21110301300000 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 21110301300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38066502712896).

21110301300000 is an abundant number, since it is smaller than the sum of its proper divisors (55022704125792).

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

21110301300000 is an equidigital number, since it uses as much as digits as its factorization.

21110301300000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581611 (or 581572 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 21110301300000 its reverse (310301112), we get a palindrome (21110611601112).

The spelling of 21110301300000 in words is "twenty-one trillion, one hundred ten billion, three hundred one million, three hundred thousand".