11000440020 has 24 divisors (see below), whose sum is σ = 30801232224. Its totient is φ = 2933450656.

The previous prime is 11000439997. The next prime is 11000440027. The reversal of 11000440020 is 2004400011.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 11000439978 and 11000440005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11000440027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91670274 + ... + 91670393.

It is an arithmetic number, because the mean of its divisors is an integer number (1283384676).

Almost surely, 2^11000440020 is an apocalyptic number.

11000440020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11000440020 is an abundant number, since it is smaller than the sum of its proper divisors (19800792204).

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

11000440020 is a wasteful number, since it uses less digits than its factorization.

11000440020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183340679 (or 183340677 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 11000440020 its reverse (2004400011), we get a palindrome (13004840031).

The spelling of 11000440020 in words is "eleven billion, four hundred forty thousand, twenty".