2021021011300 has 144 divisors (see below), whose sum is σ = 4823677671120. Its totient is φ = 731566080000.

The previous prime is 2021021011267. The next prime is 2021021011327. The reversal of 2021021011300 is 31101201202.

It can be written as a sum of positive squares in 24 ways, for example, as 1085463924736 + 935557086564 = 1041856^2 + 967242^2 .

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, 11796250 + ... + 11966350.

It is an arithmetic number, because the mean of its divisors is an integer number (33497761605).

Almost surely, 2^{2021021011300} is an apocalyptic number.

2021021011300 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 2021021011300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2411838835560).

2021021011300 is an abundant number, since it is smaller than the sum of its proper divisors (2802656659820).

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

2021021011300 is a wasteful number, since it uses less digits than its factorization.

2021021011300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170402 (or 170395 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 2021021011300 its reverse (31101201202), we get a palindrome (2052122212502).

The spelling of 2021021011300 in words is "two trillion, twenty-one billion, twenty-one million, eleven thousand, three hundred".