11116311005 has 4 divisors (see below), whose sum is σ = 13339573212. Its totient is φ = 8893048800.

The previous prime is 11116310977. The next prime is 11116311061. The reversal of 11116311005 is 50011361111.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2344302724 + 8772008281 = 48418^2 + 93659^2 .

It is not a de Polignac number, because 11116311005 - 2²⁰ = 11115262429 is a prime.

It is a super-2 number, since 2×11116311005² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1111631096 + ... + 1111631105.

It is an arithmetic number, because the mean of its divisors is an integer number (3334893303).

Almost surely, 2^11116311005 is an apocalyptic number.

It is an amenable number.

11116311005 is a deficient number, since it is larger than the sum of its proper divisors (2223262207).

11116311005 is an equidigital number, since it uses as much as digits as its factorization.

11116311005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2223262206.

The product of its (nonzero) digits is 90, while the sum is 20.

Adding to 11116311005 its reverse (50011361111), we get a palindrome (61127672116).

The spelling of 11116311005 in words is "eleven billion, one hundred sixteen million, three hundred eleven thousand, five".