21002330230 has 64 divisors (see below), whose sum is σ = 46719700992. Its totient is φ = 6633008640.

The previous prime is 21002330227. The next prime is 21002330267. The reversal of 21002330230 is 3203320012.

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 31 ways as a sum of consecutive naturals, for example, 131826 + ... + 243685.

It is an arithmetic number, because the mean of its divisors is an integer number (729995328).

Almost surely, 2^21002330230 is an apocalyptic number.

21002330230 is an abundant number, since it is smaller than the sum of its proper divisors (25717370762).

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

21002330230 is a wasteful number, since it uses less digits than its factorization.

21002330230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375589.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 21002330230 its reverse (3203320012), we get a palindrome (24205650242).

The spelling of 21002330230 in words is "twenty-one billion, two million, three hundred thirty thousand, two hundred thirty".