21302320220223 has 8 divisors (see below), whose sum is σ = 32460678430848. Its totient is φ = 12172754411544.

The previous prime is 21302320220213. The next prime is 21302320220273. The reversal of 21302320220223 is 32202202320312.

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

It is not a de Polignac number, because 21302320220223 - 2¹⁴ = 21302320203839 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21302320220193 and 21302320220202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21302320220213) 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, 507198100461 + ... + 507198100502.

It is an arithmetic number, because the mean of its divisors is an integer number (4057584803856).

Almost surely, 2^{21302320220223} is an apocalyptic number.

21302320220223 is a deficient number, since it is larger than the sum of its proper divisors (11158358210625).

21302320220223 is a wasteful number, since it uses less digits than its factorization.

21302320220223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014396200973.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 21302320220223 its reverse (32202202320312), we get a palindrome (53504522540535).

The spelling of 21302320220223 in words is "twenty-one trillion, three hundred two billion, three hundred twenty million, two hundred twenty thousand, two hundred twenty-three".