21300303012 has 24 divisors (see below), whose sum is σ = 50856538656. Its totient is φ = 6934982208.

The previous prime is 21300302999. The next prime is 21300303107. The reversal of 21300303012 is 21030300312.

It is a junction number, because it is equal to n+sod(n) for n = 21300302982 and 21300303000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20639313 + ... + 20640344.

It is an arithmetic number, because the mean of its divisors is an integer number (2119022444).

Almost surely, 2^21300303012 is an apocalyptic number.

It is an amenable number.

21300303012 is an abundant number, since it is smaller than the sum of its proper divisors (29556235644).

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

21300303012 is a wasteful number, since it uses less digits than its factorization.

21300303012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41279707 (or 41279705 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 21300303012 its reverse (21030300312), we get a palindrome (42330603324).

The spelling of 21300303012 in words is "twenty-one billion, three hundred million, three hundred three thousand, twelve".