23102220111 has 4 divisors (see below), whose sum is σ = 30802960152. Its totient is φ = 15401480072.

The previous prime is 23102219999. The next prime is 23102220161. The reversal of 23102220111 is 11102220132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23102220111 - 2⁹ = 23102219599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23102220161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3850370016 + ... + 3850370021.

It is an arithmetic number, because the mean of its divisors is an integer number (7700740038).

Almost surely, 2^23102220111 is an apocalyptic number.

23102220111 is a deficient number, since it is larger than the sum of its proper divisors (7700740041).

23102220111 is an equidigital number, since it uses as much as digits as its factorization.

23102220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7700740040.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 23102220111 its reverse (11102220132), we get a palindrome (34204440243).

The spelling of 23102220111 in words is "twenty-three billion, one hundred two million, two hundred twenty thousand, one hundred eleven".