21031012300300 has 144 divisors (see below), whose sum is σ = 47676290709600. Its totient is φ = 8042415001600.

The previous prime is 21031012300273. The next prime is 21031012300301. The reversal of 21031012300300 is 300321013012.

It is not an unprimeable number, because it can be changed into a prime (21031012300301) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 333894810 + ... + 333957790.

It is an arithmetic number, because the mean of its divisors is an integer number (331085352150).

Almost surely, 2^{21031012300300} is an apocalyptic number.

21031012300300 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 21031012300300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23838145354800).

21031012300300 is an abundant number, since it is smaller than the sum of its proper divisors (26645278409300).

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

21031012300300 is a wasteful number, since it uses less digits than its factorization.

21031012300300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64156 (or 64149 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 21031012300300 its reverse (300321013012), we get a palindrome (21331333313312).

The spelling of 21031012300300 in words is "twenty-one trillion, thirty-one billion, twelve million, three hundred thousand, three hundred".