21030230000 has 100 divisors (see below), whose sum is σ = 54833266488. Its totient is φ = 7764960000.

The previous prime is 21030229973. The next prime is 21030230051. The reversal of 21030230000 is 3203012.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 49115 + ... + 210885.

Almost surely, 2^21030230000 is an apocalyptic number.

21030230000 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 21030230000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27416633244).

21030230000 is an abundant number, since it is smaller than the sum of its proper divisors (33803036488).

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

21030230000 is a wasteful number, since it uses less digits than its factorization.

21030230000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161812 (or 161791 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

Adding to 21030230000 its reverse (3203012), we get a palindrome (21033433012).

The spelling of 21030230000 in words is "twenty-one billion, thirty million, two hundred thirty thousand".