21232301032223 has 4 divisors (see below), whose sum is σ = 21232312656600. Its totient is φ = 21232289407848.

The previous prime is 21232301032207. The next prime is 21232301032297. The reversal of 21232301032223 is 32223010323212.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 21232301032223 - 2⁴ = 21232301032207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21232301032192 and 21232301032201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21232301002223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2407640 + ... + 6947037.

It is an arithmetic number, because the mean of its divisors is an integer number (5308078164150).

Almost surely, 2^{21232301032223} is an apocalyptic number.

21232301032223 is a deficient number, since it is larger than the sum of its proper divisors (11624377).

21232301032223 is an equidigital number, since it uses as much as digits as its factorization.

21232301032223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11624376.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 21232301032223 its reverse (32223010323212), we get a palindrome (53455311355435).

The spelling of 21232301032223 in words is "twenty-one trillion, two hundred thirty-two billion, three hundred one million, thirty-two thousand, two hundred twenty-three".