23023031221 has 8 divisors (see below), whose sum is σ = 23065568064. Its totient is φ = 22980534720.

The previous prime is 23023031179. The next prime is 23023031231. The reversal of 23023031221 is 12213032032.

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

It is a cyclic number.

It is not a de Polignac number, because 23023031221 - 2³¹ = 20875547573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23023031231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1279936 + ... + 1297798.

It is an arithmetic number, because the mean of its divisors is an integer number (2883196008).

Almost surely, 2^23023031221 is an apocalyptic number.

It is an amenable number.

23023031221 is a deficient number, since it is larger than the sum of its proper divisors (42536843).

23023031221 is a wasteful number, since it uses less digits than its factorization.

23023031221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20171.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 23023031221 its reverse (12213032032), we get a palindrome (35236063253).

The spelling of 23023031221 in words is "twenty-three billion, twenty-three million, thirty-one thousand, two hundred twenty-one".