20303053444 has 12 divisors (see below), whose sum is σ = 35929561500. Its totient is φ = 10037464448.

The previous prime is 20303053399. The next prime is 20303053447. The reversal of 20303053444 is 44435030302.

It can be written as a sum of positive squares in 2 ways, for example, as 10677088900 + 9625964544 = 103330^2 + 98112^2 .

It is a super-2 number, since 2×20303053444² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20303053447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28515169 + ... + 28515880.

It is an arithmetic number, because the mean of its divisors is an integer number (2994130125).

Almost surely, 2^20303053444 is an apocalyptic number.

It is an amenable number.

20303053444 is a deficient number, since it is larger than the sum of its proper divisors (15626508056).

20303053444 is a wasteful number, since it uses less digits than its factorization.

20303053444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57031142 (or 57031140 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 28.

Adding to 20303053444 its reverse (44435030302), we get a palindrome (64738083746).

The spelling of 20303053444 in words is "twenty billion, three hundred three million, fifty-three thousand, four hundred forty-four".