2021123203303 has 16 divisors (see below), whose sum is σ = 2130536773120. Its totient is φ = 1912014520416.

The previous prime is 2021123203289. The next prime is 2021123203313. The reversal of 2021123203303 is 3033023211202.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2021123203303 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 (2021123203313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93920701 + ... + 93942217.

It is an arithmetic number, because the mean of its divisors is an integer number (133158548320).

Almost surely, 2^{2021123203303} is an apocalyptic number.

2021123203303 is a deficient number, since it is larger than the sum of its proper divisors (109413569817).

2021123203303 is a wasteful number, since it uses less digits than its factorization.

2021123203303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28366.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 2021123203303 its reverse (3033023211202), we get a palindrome (5054146414505).

The spelling of 2021123203303 in words is "two trillion, twenty-one billion, one hundred twenty-three million, two hundred three thousand, three hundred three".