12113441123 has 4 divisors (see below), whose sum is σ = 13843932720. Its totient is φ = 10382949528.

The previous prime is 12113441107. The next prime is 12113441159. The reversal of 12113441123 is 32114431121.

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

It is not a de Polignac number, because 12113441123 - 2⁴ = 12113441107 is a prime.

It is a super-2 number, since 2×12113441123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12113441323) 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, 865245788 + ... + 865245801.

It is an arithmetic number, because the mean of its divisors is an integer number (3460983180).

Almost surely, 2^12113441123 is an apocalyptic number.

12113441123 is a deficient number, since it is larger than the sum of its proper divisors (1730491597).

12113441123 is an equidigital number, since it uses as much as digits as its factorization.

12113441123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1730491596.

The product of its digits is 576, while the sum is 23.

Adding to 12113441123 its reverse (32114431121), we get a palindrome (44227872244).

The spelling of 12113441123 in words is "twelve billion, one hundred thirteen million, four hundred forty-one thousand, one hundred twenty-three".