21113000300 has 36 divisors (see below), whose sum is σ = 52360242480. Its totient is φ = 7238742720.

The previous prime is 21113000263. The next prime is 21113000303. The reversal of 21113000300 is 300031112.

It is not an unprimeable number, because it can be changed into a prime (21113000303) 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, 15080015 + ... + 15081414.

It is an arithmetic number, because the mean of its divisors is an integer number (1454451180).

Almost surely, 2^21113000300 is an apocalyptic number.

21113000300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21113000300 is an abundant number, since it is smaller than the sum of its proper divisors (31247242180).

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

21113000300 is a wasteful number, since it uses less digits than its factorization.

21113000300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30161450 (or 30161443 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 21113000300 its reverse (300031112), we get a palindrome (21413031412).

The spelling of 21113000300 in words is "twenty-one billion, one hundred thirteen million, three hundred", and thus it is an aban number.