21330230223 has 8 divisors (see below), whose sum is σ = 28621456048. Its totient is φ = 14129578944.

The previous prime is 21330230221. The next prime is 21330230227. The reversal of 21330230223 is 32203203312.

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

It is not a de Polignac number, because 21330230223 - 2¹ = 21330230221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21330230223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21330230221) 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, 22643086 + ... + 22644027.

It is an arithmetic number, because the mean of its divisors is an integer number (3577682006).

Almost surely, 2^21330230223 is an apocalyptic number.

21330230223 is a deficient number, since it is larger than the sum of its proper divisors (7291225825).

21330230223 is a wasteful number, since it uses less digits than its factorization.

21330230223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45287273.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 21330230223 its reverse (32203203312), we get a palindrome (53533433535).

The spelling of 21330230223 in words is "twenty-one billion, three hundred thirty million, two hundred thirty thousand, two hundred twenty-three".