21302203103 has 8 divisors (see below), whose sum is σ = 21897923472. Its totient is φ = 20707534656.

The previous prime is 21302203093. The next prime is 21302203121. The reversal of 21302203103 is 30130220312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21302203103 - 2¹⁶ = 21302137567 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 (21302203183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221825 + ... + 303002.

It is an arithmetic number, because the mean of its divisors is an integer number (2737240434).

Almost surely, 2^21302203103 is an apocalyptic number.

21302203103 is a deficient number, since it is larger than the sum of its proper divisors (595720369).

21302203103 is a wasteful number, since it uses less digits than its factorization.

21302203103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525961.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 21302203103 its reverse (30130220312), we get a palindrome (51432423415).

The spelling of 21302203103 in words is "twenty-one billion, three hundred two million, two hundred three thousand, one hundred three".