20442021303 has 16 divisors (see below), whose sum is σ = 30152639232. Its totient is φ = 12214608000.

The previous prime is 20442021293. The next prime is 20442021317. The reversal of 20442021303 is 30312024402.

It is not a de Polignac number, because 20442021303 - 2⁴ = 20442021287 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20442021303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20442021343) 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, 4360018 + ... + 4364703.

It is an arithmetic number, because the mean of its divisors is an integer number (1884539952).

Almost surely, 2^20442021303 is an apocalyptic number.

20442021303 is a deficient number, since it is larger than the sum of its proper divisors (9710617929).

20442021303 is a wasteful number, since it uses less digits than its factorization.

20442021303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8724806.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 20442021303 its reverse (30312024402), we get a palindrome (50754045705).

The spelling of 20442021303 in words is "twenty billion, four hundred forty-two million, twenty-one thousand, three hundred three".