2021002020203 has 4 divisors (see below), whose sum is σ = 2021005756560. Its totient is φ = 2020998283848.

The previous prime is 2021002020197. The next prime is 2021002020227. The reversal of 2021002020203 is 3020202001202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2021002020203 - 2⁶ = 2021002020139 is a prime.

It is a super-2 number, since 2×2021002020203² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021002020253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 884000 + ... + 2196237.

It is an arithmetic number, because the mean of its divisors is an integer number (505251439140).

Almost surely, 2^{2021002020203} is an apocalyptic number.

2021002020203 is a deficient number, since it is larger than the sum of its proper divisors (3736357).

2021002020203 is an equidigital number, since it uses as much as digits as its factorization.

2021002020203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3736356.

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 2021002020203 its reverse (3020202001202), we get a palindrome (5041204021405).

The spelling of 2021002020203 in words is "two trillion, twenty-one billion, two million, twenty thousand, two hundred three".