11040123011 has 16 divisors (see below), whose sum is σ = 11541761280. Its totient is φ = 10549536480.

The previous prime is 11040123001. The next prime is 11040123037. The reversal of 11040123011 is 11032104011.

It is a cyclic number.

It is not a de Polignac number, because 11040123011 - 2¹⁰ = 11040121987 is a prime.

It is a super-2 number, since 2×11040123011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11040123001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3296840 + ... + 3300186.

It is an arithmetic number, because the mean of its divisors is an integer number (721360080).

Almost surely, 2^11040123011 is an apocalyptic number.

11040123011 is a deficient number, since it is larger than the sum of its proper divisors (501638269).

11040123011 is a wasteful number, since it uses less digits than its factorization.

11040123011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4954.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 11040123011 its reverse (11032104011), we get a palindrome (22072227022).

The spelling of 11040123011 in words is "eleven billion, forty million, one hundred twenty-three thousand, eleven".