21102010300 has 36 divisors (see below), whose sum is σ = 52332987280. Its totient is φ = 7234974720.

The previous prime is 21102010273. The next prime is 21102010301. The reversal of 21102010300 is 301020112.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21102010301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15072165 + ... + 15073564.

Almost surely, 2^21102010300 is an apocalyptic number.

21102010300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21102010300 is an abundant number, since it is smaller than the sum of its proper divisors (31230976980).

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

21102010300 is a wasteful number, since it uses less digits than its factorization.

21102010300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30145750 (or 30145743 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 21102010300 its reverse (301020112), we get a palindrome (21403030412).

The spelling of 21102010300 in words is "twenty-one billion, one hundred two million, ten thousand, three hundred".