11123424240 has 80 divisors (see below), whose sum is σ = 34504541568. Its totient is φ = 2964360448.

The previous prime is 11123424233. The next prime is 11123424251. The reversal of 11123424240 is 4242432111.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 11123424240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 386179 + ... + 413981.

Almost surely, 2^11123424240 is an apocalyptic number.

11123424240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11123424240 is an abundant number, since it is smaller than the sum of its proper divisors (23381117328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11123424240 is a wasteful number, since it uses less digits than its factorization.

11123424240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29486 (or 29480 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 11123424240 its reverse (4242432111), we get a palindrome (15365856351).

The spelling of 11123424240 in words is "eleven billion, one hundred twenty-three million, four hundred twenty-four thousand, two hundred forty".