23230223221 has 4 divisors (see below), whose sum is σ = 23233708000. Its totient is φ = 23226738444.

The previous prime is 23230223197. The next prime is 23230223239. The reversal of 23230223221 is 12232203232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23230223221 - 2¹⁵ = 23230190453 is a prime.

It is a super-2 number, since 2×23230223221² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23230223192 and 23230223201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23230223321) 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, 1732371 + ... + 1745728.

It is an arithmetic number, because the mean of its divisors is an integer number (5808427000).

Almost surely, 2^23230223221 is an apocalyptic number.

It is an amenable number.

23230223221 is a deficient number, since it is larger than the sum of its proper divisors (3484779).

23230223221 is an equidigital number, since it uses as much as digits as its factorization.

23230223221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3484778.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 23230223221 its reverse (12232203232), we get a palindrome (35462426453).

The spelling of 23230223221 in words is "twenty-three billion, two hundred thirty million, two hundred twenty-three thousand, two hundred twenty-one".