21230242300 has 18 divisors (see below), whose sum is σ = 46069626008. Its totient is φ = 8492096880.

The previous prime is 21230242289. The next prime is 21230242307. The reversal of 21230242300 is 324203212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21230242307) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 106151112 + ... + 106151311.

Almost surely, 2^21230242300 is an apocalyptic number.

21230242300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21230242300 is an abundant number, since it is smaller than the sum of its proper divisors (24839383708).

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

21230242300 is a wasteful number, since it uses less digits than its factorization.

21230242300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212302437 (or 212302430 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 21230242300 its reverse (324203212), we get a palindrome (21554445512).

The spelling of 21230242300 in words is "twenty-one billion, two hundred thirty million, two hundred forty-two thousand, three hundred".