11020020020 has 24 divisors (see below), whose sum is σ = 23170681800. Its totient is φ = 4402552832.

The previous prime is 11020020019. The next prime is 11020020043. The reversal of 11020020020 is 2002002011.

It can be written as a sum of positive squares in 4 ways, for example, as 278355856 + 10741664164 = 16684^2 + 103642^2 .

11020020020 is a modest number, since divided by 20020 gives 11020 as remainder.

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 7 ways as a sum of consecutive naturals, for example, 324365 + ... + 356724.

It is an arithmetic number, because the mean of its divisors is an integer number (965445075).

Almost surely, 2^11020020020 is an apocalyptic number.

11020020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11020020020 is an abundant number, since it is smaller than the sum of its proper divisors (12150661780).

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

11020020020 is a wasteful number, since it uses less digits than its factorization.

11020020020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681907 (or 681905 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 11020020020 its reverse (2002002011), we get a palindrome (13022022031).

The spelling of 11020020020 in words is "eleven billion, twenty million, twenty thousand, twenty".