11147112497 has 4 divisors (see below), whose sum is σ = 11165477376. Its totient is φ = 11128747620.

The previous prime is 11147112443. The next prime is 11147112499. The reversal of 11147112497 is 79421174111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79421174111 = 479 ⋅165806209.

It is a cyclic number.

It is not a de Polignac number, because 11147112497 - 2⁸ = 11147112241 is a prime.

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 11147112497.

It is not an unprimeable number, because it can be changed into a prime (11147112499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9181529 + ... + 9182742.

It is an arithmetic number, because the mean of its divisors is an integer number (2791369344).

Almost surely, 2^11147112497 is an apocalyptic number.

It is an amenable number.

11147112497 is a deficient number, since it is larger than the sum of its proper divisors (18364879).

11147112497 is an equidigital number, since it uses as much as digits as its factorization.

11147112497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18364878.

The product of its digits is 14112, while the sum is 38.

The spelling of 11147112497 in words is "eleven billion, one hundred forty-seven million, one hundred twelve thousand, four hundred ninety-seven".