11111018 has 4 divisors (see below), whose sum is σ = 16666530. Its totient is φ = 5555508.

The previous prime is 11110999. The next prime is 11111039. The reversal of 11111018 is 81011111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81011111 = 61 ⋅1328051.

It can be written as a sum of positive squares in only one way, i.e., 10778089 + 332929 = 3283^2 + 577^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11110993 and 11111011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2777753 + ... + 2777756.

Almost surely, 2^11111018 is an apocalyptic number.

11111018 is a deficient number, since it is larger than the sum of its proper divisors (5555512).

11111018 is an equidigital number, since it uses as much as digits as its factorization.

11111018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5555511.

The product of its (nonzero) digits is 8, while the sum is 14.

The square root of 11111018 is about 3333.3193666374. The cubic root of 11111018 is about 223.1436933759.

Adding to 11111018 its reverse (81011111), we get a palindrome (92122129).

The spelling of 11111018 in words is "eleven million, one hundred eleven thousand, eighteen".