2003311202021 has 16 divisors (see below), whose sum is σ = 2140283631024. Its totient is φ = 1868470001664.

The previous prime is 2003311202017. The next prime is 2003311202083. The reversal of 2003311202021 is 1202021133002.

It can be written as a sum of positive squares in 8 ways, for example, as 40759572100 + 1962551629921 = 201890^2 + 1400911^2 .

It is a cyclic number.

It is not a de Polignac number, because 2003311202021 - 2² = 2003311202017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003311262021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11773865 + ... + 11942801.

It is an arithmetic number, because the mean of its divisors is an integer number (133767726939).

Almost surely, 2^{2003311202021} is an apocalyptic number.

It is an amenable number.

2003311202021 is a deficient number, since it is larger than the sum of its proper divisors (136972429003).

2003311202021 is a wasteful number, since it uses less digits than its factorization.

2003311202021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175240.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 2003311202021 its reverse (1202021133002), we get a palindrome (3205332335023).

The spelling of 2003311202021 in words is "two trillion, three billion, three hundred eleven million, two hundred two thousand, twenty-one".