2021203 has 2 divisors, whose sum is σ = 2021204. Its totient is φ = 2021202.

The previous prime is 2021197. The next prime is 2021219. The reversal of 2021203 is 3021202.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2021203 is a prime.

2021203 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2021203.

It is not a weakly prime, because it can be changed into another prime (2021003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010601 + 1010602.

It is an arithmetic number, because the mean of its divisors is an integer number (1010602).

2^2021203 is an apocalyptic number.

2021203 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021203 is an equidigital number, since it uses as much as digits as its factorization.

2021203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 2021203 is about 1421.6901912864. The cubic root of 2021203 is about 126.4357759050.

Adding to 2021203 its reverse (3021202), we get a palindrome (5042405).

Subtracting 2021203 from its reverse (3021202), we obtain a palindrome (999999).

The spelling of 2021203 in words is "two million, twenty-one thousand, two hundred three".