11002020 has 48 divisors (see below), whose sum is σ = 31872960. Its totient is φ = 2832256.

The previous prime is 11002001. The next prime is 11002037. The reversal of 11002020 is 2020011.

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.

11002020 is a modest number, since divided by 2020 gives 1100 as remainder.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1422 + ... + 4901.

It is an arithmetic number, because the mean of its divisors is an integer number (664020).

Almost surely, 2^11002020 is an apocalyptic number.

11002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11002020 is an abundant number, since it is smaller than the sum of its proper divisors (20870940).

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

11002020 is a wasteful number, since it uses less digits than its factorization.

11002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6364 (or 6362 counting only the distinct ones).

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

The square root of 11002020 is about 3316.9293028342. The cubic root of 11002020 is about 222.4116216776.

Adding to 11002020 its reverse (2020011), we get a palindrome (13022031).

Subtracting from 11002020 its reverse (2020011), we obtain a square (8982009 = 2997²).

The spelling of 11002020 in words is "eleven million, two thousand, twenty".