20320300303 has 4 divisors (see below), whose sum is σ = 20405322720. Its totient is φ = 20235277888.

The previous prime is 20320300283. The next prime is 20320300331. The reversal of 20320300303 is 30300302302.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20320300303 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 (20320300333) 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, 42510850 + ... + 42511327.

It is an arithmetic number, because the mean of its divisors is an integer number (5101330680).

Almost surely, 2^20320300303 is an apocalyptic number.

20320300303 is a deficient number, since it is larger than the sum of its proper divisors (85022417).

20320300303 is an equidigital number, since it uses as much as digits as its factorization.

20320300303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85022416.

The product of its (nonzero) digits is 324, while the sum is 16.

Adding to 20320300303 its reverse (30300302302), we get a palindrome (50620602605).

The spelling of 20320300303 in words is "twenty billion, three hundred twenty million, three hundred thousand, three hundred three".