21230203130213 has 96 divisors (see below), whose sum is σ = 28170376058880. Its totient is φ = 15805630794240.

The previous prime is 21230203130209. The next prime is 21230203130231. The reversal of 21230203130213 is 31203130203212.

It is not a de Polignac number, because 21230203130213 - 2² = 21230203130209 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21230203130243) 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 95 ways as a sum of consecutive naturals, for example, 2443338173 + ... + 2443346861.

It is an arithmetic number, because the mean of its divisors is an integer number (293441417280).

Almost surely, 2^{21230203130213} is an apocalyptic number.

It is an amenable number.

21230203130213 is a deficient number, since it is larger than the sum of its proper divisors (6940172928667).

21230203130213 is a wasteful number, since it uses less digits than its factorization.

21230203130213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11047 (or 11040 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 21230203130213 its reverse (31203130203212), we get a palindrome (52433333333425).

The spelling of 21230203130213 in words is "twenty-one trillion, two hundred thirty billion, two hundred three million, one hundred thirty thousand, two hundred thirteen".