12331112113 has 4 divisors (see below), whose sum is σ = 12362812020. Its totient is φ = 12299412208.

The previous prime is 12331112111. The next prime is 12331112147. The reversal of 12331112113 is 31121113321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31121113321 = 60923 ⋅510827.

It can be written as a sum of positive squares in 2 ways, for example, as 2372469264 + 9958642849 = 48708^2 + 99793^2 .

It is a cyclic number.

It is not a de Polignac number, because 12331112113 - 2¹ = 12331112111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12331112111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15849370 + ... + 15850147.

It is an arithmetic number, because the mean of its divisors is an integer number (3090703005).

Almost surely, 2^12331112113 is an apocalyptic number.

It is an amenable number.

12331112113 is a deficient number, since it is larger than the sum of its proper divisors (31699907).

12331112113 is an equidigital number, since it uses as much as digits as its factorization.

12331112113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31699906.

The product of its digits is 108, while the sum is 19.

Adding to 12331112113 its reverse (31121113321), we get a palindrome (43452225434).

It can be divided in two parts, 123311 and 12113, that added together give a square (135424 = 368²).

The spelling of 12331112113 in words is "twelve billion, three hundred thirty-one million, one hundred twelve thousand, one hundred thirteen".