12112230311 has 4 divisors (see below), whose sum is σ = 12223351800. Its totient is φ = 12001108824.

The previous prime is 12112230259. The next prime is 12112230313. The reversal of 12112230311 is 11303221121.

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 12112230311 - 2²⁶ = 12045121447 is a prime.

It is a super-2 number, since 2×12112230311² (a number of 21 digits) contains 22 as substring.

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 12112230311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112230313) 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, 55560581 + ... + 55560798.

It is an arithmetic number, because the mean of its divisors is an integer number (3055837950).

Almost surely, 2^12112230311 is an apocalyptic number.

12112230311 is a deficient number, since it is larger than the sum of its proper divisors (111121489).

12112230311 is a wasteful number, since it uses less digits than its factorization.

12112230311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111121488.

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

Adding to 12112230311 its reverse (11303221121), we get a palindrome (23415451432).

The spelling of 12112230311 in words is "twelve billion, one hundred twelve million, two hundred thirty thousand, three hundred eleven".