11040331111 has 4 divisors (see below), whose sum is σ = 11040710400. Its totient is φ = 11039951824.

The previous prime is 11040331061. The next prime is 11040331151. The reversal of 11040331111 is 11113304011.

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

It is a cyclic number.

It is not a de Polignac number, because 11040331111 - 2²⁵ = 11006776679 is a prime.

It is a super-2 number, since 2×11040331111² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11040331151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141991 + ... + 205528.

It is an arithmetic number, because the mean of its divisors is an integer number (2760177600).

Almost surely, 2^11040331111 is an apocalyptic number.

11040331111 is a deficient number, since it is larger than the sum of its proper divisors (379289).

11040331111 is an equidigital number, since it uses as much as digits as its factorization.

11040331111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379288.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 11040331111 its reverse (11113304011), we get a palindrome (22153635122).

The spelling of 11040331111 in words is "eleven billion, forty million, three hundred thirty-one thousand, one hundred eleven".