11003310020021 has 16 divisors (see below), whose sum is σ = 12508167493440. Its totient is φ = 9587580804480.

The previous prime is 11003310019969. The next prime is 11003310020023. The reversal of 11003310020021 is 12002001330011.

It is a cyclic number.

It is not a de Polignac number, because 11003310020021 - 2³⁰ = 11002236278197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11003310019978 and 11003310020005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11003310020023) 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, 125843651 + ... + 125931056.

It is an arithmetic number, because the mean of its divisors is an integer number (781760468340).

Almost surely, 2^{11003310020021} is an apocalyptic number.

11003310020021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11003310020021 is a deficient number, since it is larger than the sum of its proper divisors (1504857473419).

11003310020021 is a wasteful number, since it uses less digits than its factorization.

11003310020021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251774884.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 11003310020021 its reverse (12002001330011), we get a palindrome (23005311350032).

The spelling of 11003310020021 in words is "eleven trillion, three billion, three hundred ten million, twenty thousand, twenty-one".