20442310303 has 16 divisors (see below), whose sum is σ = 20988564480. Its totient is φ = 19904011776.

The previous prime is 20442310289. The next prime is 20442310309. The reversal of 20442310303 is 30301324402.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20442310303 - 2²⁹ = 19905439391 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 (20442310309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3430975 + ... + 3436927.

It is an arithmetic number, because the mean of its divisors is an integer number (1311785280).

Almost surely, 2^20442310303 is an apocalyptic number.

20442310303 is a deficient number, since it is larger than the sum of its proper divisors (546254177).

20442310303 is a wasteful number, since it uses less digits than its factorization.

20442310303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6606.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 20442310303 its reverse (30301324402), we get a palindrome (50743634705).

The spelling of 20442310303 in words is "twenty billion, four hundred forty-two million, three hundred ten thousand, three hundred three".