11124424123 has 4 divisors (see below), whose sum is σ = 11124689488. Its totient is φ = 11124158760.

The previous prime is 11124424109. The next prime is 11124424139. The reversal of 11124424123 is 32142442111.

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 11124424123 - 2¹³ = 11124415931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11124424193) 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 3 ways as a sum of consecutive naturals, for example, 54408 + ... + 158773.

It is an arithmetic number, because the mean of its divisors is an integer number (2781172372).

Almost surely, 2^11124424123 is an apocalyptic number.

11124424123 is a deficient number, since it is larger than the sum of its proper divisors (265365).

11124424123 is an equidigital number, since it uses as much as digits as its factorization.

11124424123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265364.

The product of its digits is 1536, while the sum is 25.

Adding to 11124424123 its reverse (32142442111), we get a palindrome (43266866234).

The spelling of 11124424123 in words is "eleven billion, one hundred twenty-four million, four hundred twenty-four thousand, one hundred twenty-three".