11240343421 has 16 divisors (see below), whose sum is σ = 11888467200. Its totient is φ = 10610100928.

The previous prime is 11240343391. The next prime is 11240343427. The reversal of 11240343421 is 12434304211.

It is a cyclic number.

It is not a de Polignac number, because 11240343421 - 2¹¹ = 11240341373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11240343427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1384851 + ... + 1392943.

It is an arithmetic number, because the mean of its divisors is an integer number (743029200).

Almost surely, 2^11240343421 is an apocalyptic number.

It is an amenable number.

11240343421 is a deficient number, since it is larger than the sum of its proper divisors (648123779).

11240343421 is a wasteful number, since it uses less digits than its factorization.

11240343421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9188.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 11240343421 its reverse (12434304211), we get a palindrome (23674647632).

The spelling of 11240343421 in words is "eleven billion, two hundred forty million, three hundred forty-three thousand, four hundred twenty-one".