23220320233 has 12 divisors (see below), whose sum is σ = 25620243264. Its totient is φ = 21029089400.

The previous prime is 23220320203. The next prime is 23220320237. The reversal of 23220320233 is 33202302232.

It is not a de Polignac number, because 23220320233 - 2³³ = 14630385641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23220320237) 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 11 ways as a sum of consecutive naturals, for example, 333013 + ... + 396658.

It is an arithmetic number, because the mean of its divisors is an integer number (2135020272).

Almost surely, 2^23220320233 is an apocalyptic number.

It is an amenable number.

23220320233 is a deficient number, since it is larger than the sum of its proper divisors (2399923031).

23220320233 is a wasteful number, since it uses less digits than its factorization.

23220320233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729956 (or 729945 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 22.

Adding to 23220320233 its reverse (33202302232), we get a palindrome (56422622465).

The spelling of 23220320233 in words is "twenty-three billion, two hundred twenty million, three hundred twenty thousand, two hundred thirty-three".