11112440123 has 4 divisors (see below), whose sum is σ = 11165105928. Its totient is φ = 11059774320.

The previous prime is 11112440107. The next prime is 11112440173. The reversal of 11112440123 is 32104421111.

11112440123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11112440123 - 2⁴ = 11112440107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11112440095 and 11112440104.

It is not an unprimeable number, because it can be changed into a prime (11112440173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26332586 + ... + 26333007.

It is an arithmetic number, because the mean of its divisors is an integer number (2791276482).

Almost surely, 2^11112440123 is an apocalyptic number.

11112440123 is a deficient number, since it is larger than the sum of its proper divisors (52665805).

11112440123 is an equidigital number, since it uses as much as digits as its factorization.

11112440123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52665804.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 11112440123 its reverse (32104421111), we get a palindrome (43216861234).

The spelling of 11112440123 in words is "eleven billion, one hundred twelve million, four hundred forty thousand, one hundred twenty-three".