11115344819 has 4 divisors (see below), whose sum is σ = 11225397840. Its totient is φ = 11005291800.

The previous prime is 11115344809. The next prime is 11115344827. The reversal of 11115344819 is 91844351111.

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

It is a cyclic number.

It is not a de Polignac number, because 11115344819 - 2²⁸ = 10846909363 is a prime.

It is a super-2 number, since 2×11115344819² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11115344809) 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, 55026359 + ... + 55026560.

It is an arithmetic number, because the mean of its divisors is an integer number (2806349460).

Almost surely, 2^11115344819 is an apocalyptic number.

11115344819 is a deficient number, since it is larger than the sum of its proper divisors (110053021).

11115344819 is a wasteful number, since it uses less digits than its factorization.

11115344819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110053020.

The product of its digits is 17280, while the sum is 38.

The spelling of 11115344819 in words is "eleven billion, one hundred fifteen million, three hundred forty-four thousand, eight hundred nineteen".