23421212233 has 4 divisors (see below), whose sum is σ = 23421534208. Its totient is φ = 23420890260.

The previous prime is 23421212231. The next prime is 23421212237. The reversal of 23421212233 is 33221212432.

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, 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 23421212233 - 2¹ = 23421212231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23421212198 and 23421212207.

It is not an unprimeable number, because it can be changed into a prime (23421212231) 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, 5560 + ... + 216502.

It is an arithmetic number, because the mean of its divisors is an integer number (5855383552).

Almost surely, 2^23421212233 is an apocalyptic number.

It is an amenable number.

23421212233 is a deficient number, since it is larger than the sum of its proper divisors (321975).

23421212233 is a wasteful number, since it uses less digits than its factorization.

23421212233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321974.

The product of its digits is 3456, while the sum is 25.

Adding to 23421212233 its reverse (33221212432), we get a palindrome (56642424665).

The spelling of 23421212233 in words is "twenty-three billion, four hundred twenty-one million, two hundred twelve thousand, two hundred thirty-three".