21302010223 has 8 divisors (see below), whose sum is σ = 23263734816. Its totient is φ = 19386444000.

The previous prime is 21302010203. The next prime is 21302010253. The reversal of 21302010223 is 32201020312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21302010223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21302010197 and 21302010206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21302010203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11538628 + ... + 11540473.

It is an arithmetic number, because the mean of its divisors is an integer number (2907966852).

Almost surely, 2^21302010223 is an apocalyptic number.

21302010223 is a deficient number, since it is larger than the sum of its proper divisors (1961724593).

21302010223 is a wasteful number, since it uses less digits than its factorization.

21302010223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23079185.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21302010223 its reverse (32201020312), we get a palindrome (53503030535).

The spelling of 21302010223 in words is "twenty-one billion, three hundred two million, ten thousand, two hundred twenty-three".