11100240020 has 12 divisors (see below), whose sum is σ = 23310504084. Its totient is φ = 4440096000.

The previous prime is 11100240017. The next prime is 11100240037. The reversal of 11100240020 is 2004200111.

It can be written as a sum of positive squares in 2 ways, for example, as 3347085316 + 7753154704 = 57854^2 + 88052^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11100239983 and 11100240010.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 277505981 + ... + 277506020.

It is an arithmetic number, because the mean of its divisors is an integer number (1942542007).

Almost surely, 2^11100240020 is an apocalyptic number.

11100240020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11100240020 is an abundant number, since it is smaller than the sum of its proper divisors (12210264064).

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

11100240020 is a wasteful number, since it uses less digits than its factorization.

11100240020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555012010 (or 555012008 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 11100240020 its reverse (2004200111), we get a palindrome (13104440131).

The spelling of 11100240020 in words is "eleven billion, one hundred million, two hundred forty thousand, twenty".