11181042 has 24 divisors (see below), whose sum is σ = 24329916. Its totient is φ = 3710976.

The previous prime is 11181029. The next prime is 11181061. The reversal of 11181042 is 24018111.

It can be written as a sum of positive squares in 2 ways, for example, as 7177041 + 4004001 = 2679^2 + 2001^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3418 + ... + 5834.

Almost surely, 2^11181042 is an apocalyptic number.

11181042 is an abundant number, since it is smaller than the sum of its proper divisors (13148874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11181042 is a wasteful number, since it uses less digits than its factorization.

11181042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2682 (or 2679 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

The square root of 11181042 is about 3343.8065135411. The cubic root of 11181042 is about 223.6114784020.

Adding to 11181042 its reverse (24018111), we get a palindrome (35199153).

The spelling of 11181042 in words is "eleven million, one hundred eighty-one thousand, forty-two".