11040404020 has 48 divisors (see below), whose sum is σ = 23446862208. Its totient is φ = 4366535040.

The previous prime is 11040404017. The next prime is 11040404029. The reversal of 11040404020 is 2040404011.

It is a super-3 number, since 3×11040404020³ (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11040403985 and 11040404003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11040404029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 633625 + ... + 650815.

It is an arithmetic number, because the mean of its divisors is an integer number (488476296).

Almost surely, 2^11040404020 is an apocalyptic number.

11040404020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11040404020 is an abundant number, since it is smaller than the sum of its proper divisors (12406458188).

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

11040404020 is a wasteful number, since it uses less digits than its factorization.

11040404020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17560 (or 17558 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 11040404020 its reverse (2040404011), we get a palindrome (13080808031).

Subtracting from 11040404020 its reverse (2040404011), we obtain a palindrome (9000000009).

The spelling of 11040404020 in words is "eleven billion, forty million, four hundred four thousand, twenty".