11240042430 has 64 divisors (see below), whose sum is σ = 27928929600. Its totient is φ = 2891642880.

The previous prime is 11240042419. The next prime is 11240042453. The reversal of 11240042430 is 3424004211.

It is a junction number, because it is equal to n+sod(n) for n = 11240042397 and 11240042406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1238710 + ... + 1247750.

It is an arithmetic number, because the mean of its divisors is an integer number (436389525).

Almost surely, 2^11240042430 is an apocalyptic number.

11240042430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11240042430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13964464800).

11240042430 is an abundant number, since it is smaller than the sum of its proper divisors (16688887170).

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

11240042430 is a wasteful number, since it uses less digits than its factorization.

11240042430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10509.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 11240042430 its reverse (3424004211), we get a palindrome (14664046641).

The spelling of 11240042430 in words is "eleven billion, two hundred forty million, forty-two thousand, four hundred thirty".