2021213120303 has 16 divisors (see below), whose sum is σ = 2244547929792. Its totient is φ = 1808174880000.

The previous prime is 2021213120279. The next prime is 2021213120389. The reversal of 2021213120303 is 3030213121202.

It is a cyclic number.

It is not a de Polignac number, because 2021213120303 - 2²⁴ = 2021196343087 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 (2021213120503) 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, 12476288 + ... + 12637253.

It is an arithmetic number, because the mean of its divisors is an integer number (140284245612).

Almost surely, 2^{2021213120303} is an apocalyptic number.

2021213120303 is a deficient number, since it is larger than the sum of its proper divisors (223334809489).

2021213120303 is a wasteful number, since it uses less digits than its factorization.

2021213120303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25113746.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 2021213120303 its reverse (3030213121202), we get a palindrome (5051426241505).

The spelling of 2021213120303 in words is "two trillion, twenty-one billion, two hundred thirteen million, one hundred twenty thousand, three hundred three".