11001818 has 8 divisors (see below), whose sum is σ = 16540212. Its totient is φ = 5488416.

The previous prime is 11001803. The next prime is 11001821. The reversal of 11001818 is 81810011.

11001818 = 952² + 953² + ... + 963².

It can be written as a sum of positive squares in 2 ways, for example, as 10778089 + 223729 = 3283^2 + 473^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

11001818 is a modest number, since divided by 1818 gives 1100 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 11001818.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5105 + ... + 6932.

Almost surely, 2^11001818 is an apocalyptic number.

11001818 is a deficient number, since it is larger than the sum of its proper divisors (5538394).

11001818 is a wasteful number, since it uses less digits than its factorization.

11001818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12496.

The product of its (nonzero) digits is 64, while the sum is 20.

The square root of 11001818 is about 3316.8988528443. The cubic root of 11001818 is about 222.4102604905.

Adding to 11001818 its reverse (81810011), we get a palindrome (92811829).

The spelling of 11001818 in words is "eleven million, one thousand, eight hundred eighteen".