23112130211 has 4 divisors (see below), whose sum is σ = 23112574512. Its totient is φ = 23111685912.

The previous prime is 23112130201. The next prime is 23112130229. The reversal of 23112130211 is 11203121132.

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 23112130211 - 2³⁰ = 22038388387 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23112130211.

It is not an unprimeable number, because it can be changed into a prime (23112130201) 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, 131900 + ... + 252233.

It is an arithmetic number, because the mean of its divisors is an integer number (5778143628).

Almost surely, 2^23112130211 is an apocalyptic number.

23112130211 is a deficient number, since it is larger than the sum of its proper divisors (444301).

23112130211 is an equidigital number, since it uses as much as digits as its factorization.

23112130211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444300.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 23112130211 its reverse (11203121132), we get a palindrome (34315251343).

The spelling of 23112130211 in words is "twenty-three billion, one hundred twelve million, one hundred thirty thousand, two hundred eleven".