11040404131 has 4 divisors (see below), whose sum is σ = 11048763064. Its totient is φ = 11032045200.

The previous prime is 11040404113. The next prime is 11040404143. The reversal of 11040404131 is 13140404011.

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 11040404131 - 2¹¹ = 11040402083 is a prime.

It is a super-2 number, since 2×11040404131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11040404099 and 11040404108.

It is not an unprimeable number, because it can be changed into a prime (11040404101) 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, 4177485 + ... + 4180126.

It is an arithmetic number, because the mean of its divisors is an integer number (2762190766).

Almost surely, 2^11040404131 is an apocalyptic number.

11040404131 is a deficient number, since it is larger than the sum of its proper divisors (8358933).

11040404131 is an equidigital number, since it uses as much as digits as its factorization.

11040404131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8358932.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 11040404131 its reverse (13140404011), we get a palindrome (24180808142).

The spelling of 11040404131 in words is "eleven billion, forty million, four hundred four thousand, one hundred thirty-one".