11404040243 has 16 divisors (see below), whose sum is σ = 12162195360. Its totient is φ = 10673644800.

The previous prime is 11404040183. The next prime is 11404040279. The reversal of 11404040243 is 34204040411.

It is a happy number.

It is not a de Polignac number, because 11404040243 - 2¹⁰ = 11404039219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11404043243) 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, 156128 + ... + 217218.

It is an arithmetic number, because the mean of its divisors is an integer number (760137210).

Almost surely, 2^11404040243 is an apocalyptic number.

11404040243 is a deficient number, since it is larger than the sum of its proper divisors (758155117).

11404040243 is a wasteful number, since it uses less digits than its factorization.

11404040243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61318.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 11404040243 its reverse (34204040411), we get a palindrome (45608080654).

The spelling of 11404040243 in words is "eleven billion, four hundred four million, forty thousand, two hundred forty-three".