20010303 has 12 divisors (see below), whose sum is σ = 29685448. Its totient is φ = 12979440.

The previous prime is 20010281. The next prime is 20010307. The reversal of 20010303 is 30301002.

It is a happy number.

It is not a de Polignac number, because 20010303 - 2⁵ = 20010271 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010307) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29713 + ... + 30378.

Almost surely, 2^20010303 is an apocalyptic number.

20010303 is a deficient number, since it is larger than the sum of its proper divisors (9675145).

20010303 is a wasteful number, since it uses less digits than its factorization.

20010303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60134 (or 60131 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 9.

The square root of 20010303 is about 4473.2877171047. The cubic root of 20010303 is about 271.4883647324.

Adding to 20010303 its reverse (30301002), we get a palindrome (50311305).

The spelling of 20010303 in words is "twenty million, ten thousand, three hundred three".