20420033032303 has 4 divisors (see below), whose sum is σ = 20437743383008. Its totient is φ = 20402322681600.

The previous prime is 20420033032297. The next prime is 20420033032319. The reversal of 20420033032303 is 30323033002402.

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 20420033032303 - 2⁴¹ = 18221009776751 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 (20420033432303) 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, 8855173623 + ... + 8855175928.

It is an arithmetic number, because the mean of its divisors is an integer number (5109435845752).

Almost surely, 2^{20420033032303} is an apocalyptic number.

20420033032303 is a deficient number, since it is larger than the sum of its proper divisors (17710350705).

20420033032303 is a wasteful number, since it uses less digits than its factorization.

20420033032303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17710350704.

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

Adding to 20420033032303 its reverse (30323033002402), we get a palindrome (50743066034705).

The spelling of 20420033032303 in words is "twenty trillion, four hundred twenty billion, thirty-three million, thirty-two thousand, three hundred three".