12112549506831 has 4 divisors (see below), whose sum is σ = 16150066009112. Its totient is φ = 8075033004552.

The previous prime is 12112549506823. The next prime is 12112549506847. The reversal of 12112549506831 is 13860594521121.

12112549506831 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12112549506831 - 2³ = 12112549506823 is a prime.

It is a super-2 number, since 2×12112549506831² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112549506731) 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, 2018758251136 + ... + 2018758251141.

It is an arithmetic number, because the mean of its divisors is an integer number (4037516502278).

Almost surely, 2^{12112549506831} is an apocalyptic number.

12112549506831 is a deficient number, since it is larger than the sum of its proper divisors (4037516502281).

12112549506831 is an equidigital number, since it uses as much as digits as its factorization.

12112549506831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4037516502280.

The product of its (nonzero) digits is 518400, while the sum is 48.

The spelling of 12112549506831 in words is "twelve trillion, one hundred twelve billion, five hundred forty-nine million, five hundred six thousand, eight hundred thirty-one".