12112013231023 has 4 divisors (see below), whose sum is σ = 12116684276128. Its totient is φ = 12107342185920.

The previous prime is 12112013231009. The next prime is 12112013231033. The reversal of 12112013231023 is 32013231021121.

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

It is a cyclic number.

It is not a de Polignac number, because 12112013231023 - 2³⁷ = 11974574277551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12112013230985 and 12112013231003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112013231033) 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, 2335518663 + ... + 2335523848.

It is an arithmetic number, because the mean of its divisors is an integer number (3029171069032).

Almost surely, 2^{12112013231023} is an apocalyptic number.

12112013231023 is a deficient number, since it is larger than the sum of its proper divisors (4671045105).

12112013231023 is an equidigital number, since it uses as much as digits as its factorization.

12112013231023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4671045104.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 12112013231023 its reverse (32013231021121), we get a palindrome (44125244252144).

The spelling of 12112013231023 in words is "twelve trillion, one hundred twelve billion, thirteen million, two hundred thirty-one thousand, twenty-three".