12112302231 has 12 divisors (see below), whose sum is σ = 17612969400. Its totient is φ = 8020673520.

The previous prime is 12112302173. The next prime is 12112302233. The reversal of 12112302231 is 13220321121.

12112302231 is a `hidden beast` number, since 1 + 211 + 230 + 223 + 1 = 666.

12112302231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12112302231 - 2¹⁰ = 12112301207 is a prime.

It is a super-2 number, since 2×12112302231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112302233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4514805 + ... + 4517486.

It is an arithmetic number, because the mean of its divisors is an integer number (1467747450).

Almost surely, 2^12112302231 is an apocalyptic number.

12112302231 is a deficient number, since it is larger than the sum of its proper divisors (5500667169).

12112302231 is a wasteful number, since it uses less digits than its factorization.

12112302231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9032446 (or 9032443 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12112302231 its reverse (13220321121), we get a palindrome (25332623352).

The spelling of 12112302231 in words is "twelve billion, one hundred twelve million, three hundred two thousand, two hundred thirty-one".