11240042431 has 16 divisors (see below), whose sum is σ = 11802552768. Its totient is φ = 10683904000.

The previous prime is 11240042419. The next prime is 11240042453. The reversal of 11240042431 is 13424004211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11240042431 - 2³³ = 2650107839 is a prime.

It is a super-2 number, since 2×11240042431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11240012431) 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, 2589495 + ... + 2593831.

It is an arithmetic number, because the mean of its divisors is an integer number (737659548).

Almost surely, 2^11240042431 is an apocalyptic number.

11240042431 is a deficient number, since it is larger than the sum of its proper divisors (562510337).

11240042431 is a wasteful number, since it uses less digits than its factorization.

11240042431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5042.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 11240042431 its reverse (13424004211), we get a palindrome (24664046642).

The spelling of 11240042431 in words is "eleven billion, two hundred forty million, forty-two thousand, four hundred thirty-one".