21202230303 has 32 divisors (see below), whose sum is σ = 32868218880. Its totient is φ = 13491437760.

The previous prime is 21202230253. The next prime is 21202230319. The reversal of 21202230303 is 30303220212.

It is a happy number.

It is not a de Polignac number, because 21202230303 - 2⁶ = 21202230239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21202230353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112401 + ... + 234602.

It is an arithmetic number, because the mean of its divisors is an integer number (1027131840).

Almost surely, 2^21202230303 is an apocalyptic number.

21202230303 is a deficient number, since it is larger than the sum of its proper divisors (11665988577).

21202230303 is a wasteful number, since it uses less digits than its factorization.

21202230303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347116 (or 347110 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 21202230303 its reverse (30303220212), we get a palindrome (51505450515).

The spelling of 21202230303 in words is "twenty-one billion, two hundred two million, two hundred thirty thousand, three hundred three".