20042440303 has 16 divisors (see below), whose sum is σ = 20672801856. Its totient is φ = 19422374400.

The previous prime is 20042440283. The next prime is 20042440331. The reversal of 20042440303 is 30304424002.

It is a cyclic number.

It is not a de Polignac number, because 20042440303 - 2³³ = 11452505711 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 (20042440703) 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, 2313526 + ... + 2322172.

It is an arithmetic number, because the mean of its divisors is an integer number (1292050116).

Almost surely, 2^20042440303 is an apocalyptic number.

20042440303 is a deficient number, since it is larger than the sum of its proper divisors (630361553).

20042440303 is a wasteful number, since it uses less digits than its factorization.

20042440303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9234.

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 20042440303 its reverse (30304424002), we get a palindrome (50346864305).

The spelling of 20042440303 in words is "twenty billion, forty-two million, four hundred forty thousand, three hundred three".