21000010300 has 36 divisors (see below), whose sum is σ = 47968448920. Its totient is φ = 7957897920.

The previous prime is 21000010279. The next prime is 21000010301. The reversal of 21000010300 is 301000012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21000010301) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 5524419 + ... + 5528218.

Almost surely, 2^21000010300 is an apocalyptic number.

21000010300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21000010300 is an abundant number, since it is smaller than the sum of its proper divisors (26968438620).

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

21000010300 is a wasteful number, since it uses less digits than its factorization.

21000010300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11052670 (or 11052663 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 7.

Adding to 21000010300 its reverse (301000012), we get a palindrome (21301010312).

The spelling of 21000010300 in words is "twenty-one billion, ten thousand, three hundred".