11103240440431 has 4 divisors (see below), whose sum is σ = 11183119868200. Its totient is φ = 11023361012664.

The previous prime is 11103240440419. The next prime is 11103240440443. The reversal of 11103240440431 is 13404404230111.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (11103240440419) and next prime (11103240440443).

It is a cyclic number.

It is not a de Polignac number, because 11103240440431 - 2⁵ = 11103240440399 is a prime.

It is a super-2 number, since 2×11103240440431² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11103240440431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11103240440471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39939713676 + ... + 39939713953.

It is an arithmetic number, because the mean of its divisors is an integer number (2795779967050).

Almost surely, 2^{11103240440431} is an apocalyptic number.

11103240440431 is a deficient number, since it is larger than the sum of its proper divisors (79879427769).

11103240440431 is an equidigital number, since it uses as much as digits as its factorization.

11103240440431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79879427768.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 11103240440431 its reverse (13404404230111), we get a palindrome (24507644670542).

The spelling of 11103240440431 in words is "eleven trillion, one hundred three billion, two hundred forty million, four hundred forty thousand, four hundred thirty-one".