11013818 has 4 divisors (see below), whose sum is σ = 16520730. Its totient is φ = 5506908.

The previous prime is 11013811. The next prime is 11013829. The reversal of 11013818 is 81831011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81831011 = 29 ⋅2821759.

It can be written as a sum of positive squares in only one way, i.e., 10608049 + 405769 = 3257^2 + 637^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11013793 and 11013802.

It is not an unprimeable number, because it can be changed into a prime (11013811) by changing a digit.

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, 2753453 + ... + 2753456.

Almost surely, 2^11013818 is an apocalyptic number.

11013818 is a deficient number, since it is larger than the sum of its proper divisors (5506912).

11013818 is an equidigital number, since it uses as much as digits as its factorization.

11013818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5506911.

The product of its (nonzero) digits is 192, while the sum is 23.

The square root of 11013818 is about 3318.7072784444. The cubic root of 11013818 is about 222.4910942023.

Adding to 11013818 its reverse (81831011), we get a palindrome (92844829).

The spelling of 11013818 in words is "eleven million, thirteen thousand, eight hundred eighteen".