12112013123 has 8 divisors (see below), whose sum is σ = 13902749280. Its totient is φ = 10336389120.

The previous prime is 12112013107. The next prime is 12112013143. The reversal of 12112013123 is 32131021121.

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 12112013123 - 2⁴ = 12112013107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12112013143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3776318 + ... + 3779523.

It is an arithmetic number, because the mean of its divisors is an integer number (1737843660).

Almost surely, 2^12112013123 is an apocalyptic number.

12112013123 is a deficient number, since it is larger than the sum of its proper divisors (1790736157).

12112013123 is an equidigital number, since it uses as much as digits as its factorization.

12112013123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7556077.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12112013123 its reverse (32131021121), we get a palindrome (44243034244).

The spelling of 12112013123 in words is "twelve billion, one hundred twelve million, thirteen thousand, one hundred twenty-three".