1020020303 has 2 divisors, whose sum is σ = 1020020304. Its totient is φ = 1020020302.

The previous prime is 1020020299. The next prime is 1020020333. The reversal of 1020020303 is 3030200201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1020020303 - 2² = 1020020299 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020020333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510010151 + 510010152.

It is an arithmetic number, because the mean of its divisors is an integer number (510010152).

Almost surely, 2^1020020303 is an apocalyptic number.

1020020303 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020020303 is an equidigital number, since it uses as much as digits as its factorization.

1020020303 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 11.

The square root of 1020020303 is about 31937.7566995555. The cubic root of 1020020303 is about 1006.6293884246.

Adding to 1020020303 its reverse (3030200201), we get a palindrome (4050220504).

It can be divided in two parts, 10200 and 20303, that added together give a palindrome (30503).

The spelling of 1020020303 in words is "one billion, twenty million, twenty thousand, three hundred three".