21400330000 has 100 divisors (see below), whose sum is σ = 59214295360. Its totient is φ = 7337232000.

The previous prime is 21400329991. The next prime is 21400330001. The reversal of 21400330000 is 3300412.

It is a tau number, because it is divible by the number of its divisors (100).

It is not an unprimeable number, because it can be changed into a prime (21400330001) 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 19 ways as a sum of consecutive naturals, for example, 82860 + ... + 222859.

Almost surely, 2^21400330000 is an apocalyptic number.

21400330000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21400330000 is an abundant number, since it is smaller than the sum of its proper divisors (37813965360).

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

21400330000 is an equidigital number, since it uses as much as digits as its factorization.

21400330000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305754 (or 305733 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 21400330000 its reverse (3300412), we get a palindrome (21403630412).

The spelling of 21400330000 in words is "twenty-one billion, four hundred million, three hundred thirty thousand".