12112311131 has 16 divisors (see below), whose sum is σ = 12489657600. Its totient is φ = 11741868000.

The previous prime is 12112311119. The next prime is 12112311137. The reversal of 12112311131 is 13111321121.

It is a cyclic number.

It is not a de Polignac number, because 12112311131 - 2⁶ = 12112311067 is a prime.

It is a super-2 number, since 2×12112311131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12112311137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1233461 + ... + 1243241.

It is an arithmetic number, because the mean of its divisors is an integer number (780603600).

Almost surely, 2^12112311131 is an apocalyptic number.

12112311131 is a deficient number, since it is larger than the sum of its proper divisors (377346469).

12112311131 is a wasteful number, since it uses less digits than its factorization.

12112311131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10130.

The product of its digits is 36, while the sum is 17.

Adding to 12112311131 its reverse (13111321121), we get a palindrome (25223632252).

The spelling of 12112311131 in words is "twelve billion, one hundred twelve million, three hundred eleven thousand, one hundred thirty-one".