20020303 has 2 divisors, whose sum is σ = 20020304. Its totient is φ = 20020302.

The previous prime is 20020291. The next prime is 20020307. The reversal of 20020303 is 30302002.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20020303 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20020303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20020307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010151 + 10010152.

It is an arithmetic number, because the mean of its divisors is an integer number (10010152).

Almost surely, 2^20020303 is an apocalyptic number.

20020303 is a deficient number, since it is larger than the sum of its proper divisors (1).

20020303 is an equidigital number, since it uses as much as digits as its factorization.

20020303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 10.

The square root of 20020303 is about 4474.4053236156. The cubic root of 20020303 is about 271.5335819642.

Adding to 20020303 its reverse (30302002), we get a palindrome (50322305).

It can be divided in two parts, 200 and 20303, that added together give a triangular number (20503 = T₂₀₂).

The spelling of 20020303 in words is "twenty million, twenty thousand, three hundred three".