21002223303 has 12 divisors (see below), whose sum is σ = 30337827520. Its totient is φ = 14000890176.

The previous prime is 21002223301. The next prime is 21002223329. The reversal of 21002223303 is 30332220012.

It is a happy number.

It is not a de Polignac number, because 21002223303 - 2¹ = 21002223301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21002223301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 324138 + ... + 383496.

Almost surely, 2^21002223303 is an apocalyptic number.

21002223303 is a deficient number, since it is larger than the sum of its proper divisors (9335604217).

21002223303 is a wasteful number, since it uses less digits than its factorization.

21002223303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98678 (or 98675 counting only the distinct ones).

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

Adding to 21002223303 its reverse (30332220012), we get a palindrome (51334443315).

The spelling of 21002223303 in words is "twenty-one billion, two million, two hundred twenty-three thousand, three hundred three".