21302323202111 has 12 divisors (see below), whose sum is σ = 24780338268480. Its totient is φ = 18259071727680.

The previous prime is 21302323202093. The next prime is 21302323202117. The reversal of 21302323202111 is 11120232320312.

It is a de Polignac number, because none of the positive numbers 2^k-21302323202111 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 (21302323202117) 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, 19058135 + ... + 20144903.

It is an arithmetic number, because the mean of its divisors is an integer number (2065028189040).

Almost surely, 2^{21302323202111} is an apocalyptic number.

21302323202111 is a deficient number, since it is larger than the sum of its proper divisors (3478015066369).

21302323202111 is a wasteful number, since it uses less digits than its factorization.

21302323202111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1486814 (or 1486807 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 21302323202111 its reverse (11120232320312), we get a palindrome (32422555522423).

The spelling of 21302323202111 in words is "twenty-one trillion, three hundred two billion, three hundred twenty-three million, two hundred two thousand, one hundred eleven".