21001333230300 has 72 divisors (see below), whose sum is σ = 60883236817200. Its totient is φ = 5589352824320.

The previous prime is 21001333230289. The next prime is 21001333230373. The reversal of 21001333230300 is 303233310012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68613945 + ... + 68919344.

It is an arithmetic number, because the mean of its divisors is an integer number (845600511350).

Almost surely, 2^{21001333230300} is an apocalyptic number.

21001333230300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21001333230300 is an abundant number, since it is smaller than the sum of its proper divisors (39881903586900).

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

21001333230300 is a wasteful number, since it uses less digits than its factorization.

21001333230300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137533815 (or 137533808 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 21001333230300 its reverse (303233310012), we get a palindrome (21304566540312).

The spelling of 21001333230300 in words is "twenty-one trillion, one billion, three hundred thirty-three million, two hundred thirty thousand, three hundred".