21000300113020 has 12 divisors (see below), whose sum is σ = 44100630237384. Its totient is φ = 8400120045200.

The previous prime is 21000300112999. The next prime is 21000300113077. The reversal of 21000300113020 is 2031100300012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525007502806 + ... + 525007502845.

It is an arithmetic number, because the mean of its divisors is an integer number (3675052519782).

Almost surely, 2^{21000300113020} is an apocalyptic number.

21000300113020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21000300113020 is an abundant number, since it is smaller than the sum of its proper divisors (23100330124364).

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

21000300113020 is a wasteful number, since it uses less digits than its factorization.

21000300113020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050015005660 (or 1050015005658 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 21000300113020 its reverse (2031100300012), we get a palindrome (23031400413032).

The spelling of 21000300113020 in words is "twenty-one trillion, three hundred million, one hundred thirteen thousand, twenty".