12031023113 has 4 divisors (see below), whose sum is σ = 12078955728. Its totient is φ = 11983090500.

The previous prime is 12031023083. The next prime is 12031023133. The reversal of 12031023113 is 31132013021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12031023113 - 2³⁰ = 10957281289 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12031023091 and 12031023100.

It is not an unprimeable number, because it can be changed into a prime (12031023133) 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, 23965931 + ... + 23966432.

It is an arithmetic number, because the mean of its divisors is an integer number (3019738932).

Almost surely, 2^12031023113 is an apocalyptic number.

It is an amenable number.

12031023113 is a deficient number, since it is larger than the sum of its proper divisors (47932615).

12031023113 is an equidigital number, since it uses as much as digits as its factorization.

12031023113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47932614.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 12031023113 its reverse (31132013021), we get a palindrome (43163036134).

The spelling of 12031023113 in words is "twelve billion, thirty-one million, twenty-three thousand, one hundred thirteen".