20423200330303 has 4 divisors (see below), whose sum is σ = 20423227326408. Its totient is φ = 20423173334200.

The previous prime is 20423200330301. The next prime is 20423200330381. The reversal of 20423200330303 is 30303300232402.

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 20423200330303 - 2¹ = 20423200330301 is a prime.

It is a super-2 number, since 2×20423200330303² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20423200330301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12329548 + ... + 13887553.

It is an arithmetic number, because the mean of its divisors is an integer number (5105806831602).

Almost surely, 2^{20423200330303} is an apocalyptic number.

20423200330303 is a deficient number, since it is larger than the sum of its proper divisors (26996105).

20423200330303 is an equidigital number, since it uses as much as digits as its factorization.

20423200330303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26996104.

The product of its (nonzero) digits is 7776, while the sum is 25.

Adding to 20423200330303 its reverse (30303300232402), we get a palindrome (50726500562705).

The spelling of 20423200330303 in words is "twenty trillion, four hundred twenty-three billion, two hundred million, three hundred thirty thousand, three hundred three".