20450104303 has 4 divisors (see below), whose sum is σ = 20925688168. Its totient is φ = 19974520440.

The previous prime is 20450104289. The next prime is 20450104307. The reversal of 20450104303 is 30340105402.

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-20450104303 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 (20450104307) 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, 237791868 + ... + 237791953.

It is an arithmetic number, because the mean of its divisors is an integer number (5231422042).

Almost surely, 2^20450104303 is an apocalyptic number.

20450104303 is a deficient number, since it is larger than the sum of its proper divisors (475583865).

20450104303 is an equidigital number, since it uses as much as digits as its factorization.

20450104303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475583864.

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 20450104303 its reverse (30340105402), we get a palindrome (50790209705).

The spelling of 20450104303 in words is "twenty billion, four hundred fifty million, one hundred four thousand, three hundred three".