20033012303 has 4 divisors (see below), whose sum is σ = 20167462200. Its totient is φ = 19898562408.

The previous prime is 20033012299. The next prime is 20033012323. The reversal of 20033012303 is 30321033002.

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 20033012303 - 2² = 20033012299 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20033012323) 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, 67224725 + ... + 67225022.

It is an arithmetic number, because the mean of its divisors is an integer number (5041865550).

Almost surely, 2^20033012303 is an apocalyptic number.

20033012303 is a deficient number, since it is larger than the sum of its proper divisors (134449897).

20033012303 is a wasteful number, since it uses less digits than its factorization.

20033012303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134449896.

The product of its (nonzero) digits is 324, while the sum is 17.

Adding to 20033012303 its reverse (30321033002), we get a palindrome (50354045305).

The spelling of 20033012303 in words is "twenty billion, thirty-three million, twelve thousand, three hundred three".