21103202230 has 24 divisors (see below), whose sum is σ = 41752949616. Its totient is φ = 7673891280.

The previous prime is 21103202227. The next prime is 21103202249. The reversal of 21103202230 is 3220230112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8719122 + ... + 8721541.

It is an arithmetic number, because the mean of its divisors is an integer number (1739706234).

Almost surely, 2^21103202230 is an apocalyptic number.

21103202230 is a deficient number, since it is larger than the sum of its proper divisors (20649747386).

21103202230 is a wasteful number, since it uses less digits than its factorization.

21103202230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17440692 (or 17440681 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21103202230 its reverse (3220230112), we get a palindrome (24323432342).

The spelling of 21103202230 in words is "twenty-one billion, one hundred three million, two hundred two thousand, two hundred thirty".