11002001012020 has 48 divisors (see below), whose sum is σ = 23117271408000. Its totient is φ = 4398311707776.

The previous prime is 11002001011987. The next prime is 11002001012021. The reversal of 11002001012020 is 2021010020011.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 11002001011988 and 11002001012006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11002001012021) by changing a digit.

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, 317932039 + ... + 317966641.

It is an arithmetic number, because the mean of its divisors is an integer number (481609821000).

Almost surely, 2^{11002001012020} is an apocalyptic number.

11002001012020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11002001012020 is an abundant number, since it is smaller than the sum of its proper divisors (12115270395980).

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

11002001012020 is a wasteful number, since it uses less digits than its factorization.

11002001012020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43144 (or 43142 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 11002001012020 its reverse (2021010020011), we get a palindrome (13023011032031).

The spelling of 11002001012020 in words is "eleven trillion, two billion, one million, twelve thousand, twenty".