11124427523 has 4 divisors (see below), whose sum is σ = 12135739128. Its totient is φ = 10113115920.

The previous prime is 11124427519. The next prime is 11124427577. The reversal of 11124427523 is 32572442111.

It is a happy number.

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 11124427523 - 2² = 11124427519 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11124427523.

It is not an unprimeable number, because it can be changed into a prime (11124427123) 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, 505655786 + ... + 505655807.

It is an arithmetic number, because the mean of its divisors is an integer number (3033934782).

Almost surely, 2^11124427523 is an apocalyptic number.

11124427523 is a deficient number, since it is larger than the sum of its proper divisors (1011311605).

11124427523 is a wasteful number, since it uses less digits than its factorization.

11124427523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011311604.

The product of its digits is 13440, while the sum is 32.

Adding to 11124427523 its reverse (32572442111), we get a palindrome (43696869634).

The spelling of 11124427523 in words is "eleven billion, one hundred twenty-four million, four hundred twenty-seven thousand, five hundred twenty-three".