210300021300 has 72 divisors (see below), whose sum is σ = 609400433376. Its totient is φ = 55994072960.

The previous prime is 210300021293. The next prime is 210300021359. The reversal of 210300021300 is 3120003012.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 340854 + ... + 732653.

It is an arithmetic number, because the mean of its divisors is an integer number (8463894908).

Almost surely, 2^210300021300 is an apocalyptic number.

210300021300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210300021300 is an abundant number, since it is smaller than the sum of its proper divisors (399100412076).

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

210300021300 is a wasteful number, since it uses less digits than its factorization.

210300021300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074177 (or 1074170 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 210300021300 its reverse (3120003012), we get a palindrome (213420024312).

The spelling of 210300021300 in words is "two hundred ten billion, three hundred million, twenty-one thousand, three hundred".