21107324230 has 16 divisors (see below), whose sum is σ = 38560247280. Its totient is φ = 8316915552.

The previous prime is 21107324209. The next prime is 21107324239. The reversal of 21107324230 is 3242370112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21107324195 and 21107324204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21107324239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15751065 + ... + 15752404.

It is an arithmetic number, because the mean of its divisors is an integer number (2410015455).

Almost surely, 2^21107324230 is an apocalyptic number.

21107324230 is a deficient number, since it is larger than the sum of its proper divisors (17452923050).

21107324230 is a wasteful number, since it uses less digits than its factorization.

21107324230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31503543.

The product of its (nonzero) digits is 2016, while the sum is 25.

Adding to 21107324230 its reverse (3242370112), we get a palindrome (24349694342).

The spelling of 21107324230 in words is "twenty-one billion, one hundred seven million, three hundred twenty-four thousand, two hundred thirty".