21303310000 has 200 divisors, whose sum is σ = 59215844864. Its totient is φ = 7270560000.

The previous prime is 21303309953. The next prime is 21303310001. The reversal of 21303310000 is 1330312.

It is a tau number, because it is divible by the number of its divisors (200).

It is a super-2 number, since 2×21303310000² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21303310001) 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 39 ways as a sum of consecutive naturals, for example, 18969439 + ... + 18970561.

Almost surely, 2^21303310000 is an apocalyptic number.

21303310000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21303310000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29607922432).

21303310000 is an abundant number, since it is smaller than the sum of its proper divisors (37912534864).

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

21303310000 is a wasteful number, since it uses less digits than its factorization.

21303310000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1429 (or 1408 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 13.

Adding to 21303310000 its reverse (1330312), we get a palindrome (21304640312).

The spelling of 21303310000 in words is "twenty-one billion, three hundred three million, three hundred ten thousand".