1021201320303 has 12 divisors (see below), whose sum is σ = 1475077492408. Its totient is φ = 680796763920.

The previous prime is 1021201320287. The next prime is 1021201320313. The reversal of 1021201320303 is 3030231021201.

1021201320303 is a `hidden beast` number, since 1 + 0 + 21 + 20 + 1 + 320 + 303 = 666.

It is not a de Polignac number, because 1021201320303 - 2⁴ = 1021201320287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021201320313) 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 11 ways as a sum of consecutive naturals, for example, 2300133 + ... + 2707953.

Almost surely, 2^{1021201320303} is an apocalyptic number.

1021201320303 is a deficient number, since it is larger than the sum of its proper divisors (453876172105).

1021201320303 is a wasteful number, since it uses less digits than its factorization.

1021201320303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686054 (or 686051 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1021201320303 its reverse (3030231021201), we get a palindrome (4051432341504).

The spelling of 1021201320303 in words is "one trillion, twenty-one billion, two hundred one million, three hundred twenty thousand, three hundred three".