12112012231031 has 8 divisors (see below), whose sum is σ = 12759094337280. Its totient is φ = 11465890902648.

The previous prime is 12112012231013. The next prime is 12112012231043. The reversal of 12112012231031 is 13013221021121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12112012231031 - 2⁴² = 7713965719927 is a prime.

It is a super-2 number, since 2×12112012231031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12112012230994 and 12112012231012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112012231531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240168581 + ... + 240219006.

It is an arithmetic number, because the mean of its divisors is an integer number (1594886792160).

Almost surely, 2^{12112012231031} is an apocalyptic number.

12112012231031 is a deficient number, since it is larger than the sum of its proper divisors (647082106249).

12112012231031 is a wasteful number, since it uses less digits than its factorization.

12112012231031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480388933.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 12112012231031 its reverse (13013221021121), we get a palindrome (25125233252152).

The spelling of 12112012231031 in words is "twelve trillion, one hundred twelve billion, twelve million, two hundred thirty-one thousand, thirty-one".