20303042144 has 48 divisors (see below), whose sum is σ = 49834745856. Its totient is φ = 7910275200.

The previous prime is 20303042143. The next prime is 20303042147. The reversal of 20303042144 is 44124030302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20303042143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4117472 + ... + 4122399.

It is an arithmetic number, because the mean of its divisors is an integer number (1038223872).

Almost surely, 2^20303042144 is an apocalyptic number.

It is an amenable number.

20303042144 is an abundant number, since it is smaller than the sum of its proper divisors (29531703712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20303042144 is a wasteful number, since it uses less digits than its factorization.

20303042144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8239899 (or 8239891 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 20303042144 its reverse (44124030302), we get a palindrome (64427072446).

The spelling of 20303042144 in words is "twenty billion, three hundred three million, forty-two thousand, one hundred forty-four".