21230330030 has 128 divisors (see below), whose sum is σ = 47753798400. Its totient is φ = 6616940544.

The previous prime is 21230329979. The next prime is 21230330059. The reversal of 21230330030 is 3003303212.

It is a junction number, because it is equal to n+sod(n) for n = 21230329990 and 21230330008.

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 19143116 + ... + 19144224.

It is an arithmetic number, because the mean of its divisors is an integer number (373076550).

Almost surely, 2^21230330030 is an apocalyptic number.

21230330030 is an abundant number, since it is smaller than the sum of its proper divisors (26523468370).

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

21230330030 is a wasteful number, since it uses less digits than its factorization.

21230330030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438.

The product of its (nonzero) digits is 324, while the sum is 17.

Adding to 21230330030 its reverse (3003303212), we get a palindrome (24233633242).

The spelling of 21230330030 in words is "twenty-one billion, two hundred thirty million, three hundred thirty thousand, thirty".