23102111211 has 4 divisors (see below), whose sum is σ = 30802814952. Its totient is φ = 15401407472.

The previous prime is 23102111147. The next prime is 23102111231. The reversal of 23102111211 is 11211120132.

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 23102111211 - 2⁶ = 23102111147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23102111231) 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, 3850351866 + ... + 3850351871.

It is an arithmetic number, because the mean of its divisors is an integer number (7700703738).

Almost surely, 2^23102111211 is an apocalyptic number.

23102111211 is a deficient number, since it is larger than the sum of its proper divisors (7700703741).

23102111211 is an equidigital number, since it uses as much as digits as its factorization.

23102111211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7700703740.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 23102111211 its reverse (11211120132), we get a palindrome (34313231343).

The spelling of 23102111211 in words is "twenty-three billion, one hundred two million, one hundred eleven thousand, two hundred eleven".