12113230111 has 4 divisors (see below), whose sum is σ = 12149174752. Its totient is φ = 12077285472.

The previous prime is 12113230091. The next prime is 12113230141. The reversal of 12113230111 is 11103231121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11103231121 = 599 ⋅18536279.

It is a cyclic number.

It is not a de Polignac number, because 12113230111 - 2¹⁷ = 12113099039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12113230141) 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, 17971815 + ... + 17972488.

It is an arithmetic number, because the mean of its divisors is an integer number (3037293688).

Almost surely, 2^12113230111 is an apocalyptic number.

12113230111 is a deficient number, since it is larger than the sum of its proper divisors (35944641).

12113230111 is an equidigital number, since it uses as much as digits as its factorization.

12113230111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35944640.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 12113230111 its reverse (11103231121), we get a palindrome (23216461232).

The spelling of 12113230111 in words is "twelve billion, one hundred thirteen million, two hundred thirty thousand, one hundred eleven".