20303113303 has 16 divisors (see below), whose sum is σ = 22544226720. Its totient is φ = 18128764800.

The previous prime is 20303113289. The next prime is 20303113307. The reversal of 20303113303 is 30331130302.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20303113303 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 (20303113307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 454401 + ... + 497077.

It is an arithmetic number, because the mean of its divisors is an integer number (1409014170).

Almost surely, 2^20303113303 is an apocalyptic number.

20303113303 is a deficient number, since it is larger than the sum of its proper divisors (2241113417).

20303113303 is a wasteful number, since it uses less digits than its factorization.

20303113303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43458.

The product of its (nonzero) digits is 486, while the sum is 19.

Adding to 20303113303 its reverse (30331130302), we get a palindrome (50634243605).

The spelling of 20303113303 in words is "twenty billion, three hundred three million, one hundred thirteen thousand, three hundred three".