11611018 has 4 divisors (see below), whose sum is σ = 17416530. Its totient is φ = 5805508.

The previous prime is 11611013. The next prime is 11611037. The reversal of 11611018 is 81011611.

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

It can be written as a sum of positive squares in only one way, i.e., 9381969 + 2229049 = 3063^2 + 1493^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11610986 and 11611004.

It is not an unprimeable number, because it can be changed into a prime (11611013) 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, 2902753 + ... + 2902756.

Almost surely, 2^11611018 is an apocalyptic number.

11611018 is a deficient number, since it is larger than the sum of its proper divisors (5805512).

11611018 is an equidigital number, since it uses as much as digits as its factorization.

11611018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5805511.

The product of its (nonzero) digits is 48, while the sum is 19.

The square root of 11611018 is about 3407.4943873762. The cubic root of 11611018 is about 226.4418874122.

Adding to 11611018 its reverse (81011611), we get a palindrome (92622629).

The spelling of 11611018 in words is "eleven million, six hundred eleven thousand, eighteen".