11000002020 has 48 divisors (see below), whose sum is σ = 35200007808. Its totient is φ = 2514286080.

The previous prime is 11000002009. The next prime is 11000002037. The reversal of 11000002020 is 2020000011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13094821 + ... + 13095660.

It is an arithmetic number, because the mean of its divisors is an integer number (733333496).

Almost surely, 2^11000002020 is an apocalyptic number.

11000002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11000002020 is an abundant number, since it is smaller than the sum of its proper divisors (24200005788).

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

11000002020 is a wasteful number, since it uses less digits than its factorization.

11000002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26190500 (or 26190498 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 6.

Adding to 11000002020 its reverse (2020000011), we get a palindrome (13020002031).

The spelling of 11000002020 in words is "eleven billion, two thousand, twenty".