12112233311 has 4 divisors (see below), whose sum is σ = 12265552800. Its totient is φ = 11958913824.

The previous prime is 12112233299. The next prime is 12112233317. The reversal of 12112233311 is 11333221121.

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: 11333221121 = 2791 ⋅4060631.

It is not a de Polignac number, because 12112233311 - 2⁶ = 12112233247 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 (12112233317) 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, 76659626 + ... + 76659783.

It is an arithmetic number, because the mean of its divisors is an integer number (3066388200).

Almost surely, 2^12112233311 is an apocalyptic number.

12112233311 is a deficient number, since it is larger than the sum of its proper divisors (153319489).

12112233311 is an equidigital number, since it uses as much as digits as its factorization.

12112233311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153319488.

The product of its digits is 216, while the sum is 20.

Adding to 12112233311 its reverse (11333221121), we get a palindrome (23445454432).

The spelling of 12112233311 in words is "twelve billion, one hundred twelve million, two hundred thirty-three thousand, three hundred eleven".