21010120111300 has 144 divisors (see below), whose sum is σ = 48413520086400. Its totient is φ = 7897023129600.

The previous prime is 21010120111273. The next prime is 21010120111349. The reversal of 21010120111300 is 311102101012.

It is a happy number.

21010120111300 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

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, 202005310 + ... + 202109290.

It is an arithmetic number, because the mean of its divisors is an integer number (336205000600).

Almost surely, 2^{21010120111300} is an apocalyptic number.

21010120111300 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 21010120111300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24206760043200).

21010120111300 is an abundant number, since it is smaller than the sum of its proper divisors (27403399975100).

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

21010120111300 is a wasteful number, since it uses less digits than its factorization.

21010120111300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105566 (or 105559 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 21010120111300 its reverse (311102101012), we get a palindrome (21321222212312).

The spelling of 21010120111300 in words is "twenty-one trillion, ten billion, one hundred twenty million, one hundred eleven thousand, three hundred".