21313300012 has 24 divisors (see below), whose sum is σ = 37424295216. Its totient is φ = 10620707328.

The previous prime is 21313299983. The next prime is 21313300033. The reversal of 21313300012 is 21000331312.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1456243 + ... + 1470805.

It is an arithmetic number, because the mean of its divisors is an integer number (1559345634).

Almost surely, 2^21313300012 is an apocalyptic number.

It is an amenable number.

21313300012 is a deficient number, since it is larger than the sum of its proper divisors (16110995204).

21313300012 is a wasteful number, since it uses less digits than its factorization.

21313300012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15777 (or 15775 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 21313300012 its reverse (21000331312), we get a palindrome (42313631324).

The spelling of 21313300012 in words is "twenty-one billion, three hundred thirteen million, three hundred thousand, twelve".