11818011 has 4 divisors (see below), whose sum is σ = 15757352. Its totient is φ = 7878672.

The previous prime is 11818007. The next prime is 11818049. The reversal of 11818011 is 11081811.

It is a happy number.

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

It is not a de Polignac number, because 11818011 - 2² = 11818007 is a prime.

It is a super-2 number, since 2×11818011² = 279330767992242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11818061) 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 in 3 ways as a sum of consecutive naturals, for example, 1969666 + ... + 1969671.

It is an arithmetic number, because the mean of its divisors is an integer number (3939338).

Almost surely, 2^11818011 is an apocalyptic number.

11818011 is a deficient number, since it is larger than the sum of its proper divisors (3939341).

11818011 is an equidigital number, since it uses as much as digits as its factorization.

11818011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3939340.

The product of its (nonzero) digits is 64, while the sum is 21.

The square root of 11818011 is about 3437.7334102574. The cubic root of 11818011 is about 227.7795846156.

Adding to 11818011 its reverse (11081811), we get a palindrome (22899822).

The spelling of 11818011 in words is "eleven million, eight hundred eighteen thousand, eleven".