20143304144 has 10 divisors (see below), whose sum is σ = 39027651810. Its totient is φ = 10071652064.

The previous prime is 20143304089. The next prime is 20143304147. The reversal of 20143304144 is 44140334102.

It can be written as a sum of positive squares in only one way, i.e., 17932423744 + 2210880400 = 133912^2 + 47020^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20143304147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 629478239 + ... + 629478270.

It is an arithmetic number, because the mean of its divisors is an integer number (3902765181).

Almost surely, 2^20143304144 is an apocalyptic number.

It is an amenable number.

20143304144 is a deficient number, since it is larger than the sum of its proper divisors (18884347666).

20143304144 is a wasteful number, since it uses less digits than its factorization.

20143304144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1258956517 (or 1258956511 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 20143304144 its reverse (44140334102), we get a palindrome (64283638246).

The spelling of 20143304144 in words is "twenty billion, one hundred forty-three million, three hundred four thousand, one hundred forty-four".