503435120144 has 20 divisors (see below), whose sum is σ = 1064078777040. Its totient is φ = 228834145440.

The previous prime is 503435120137. The next prime is 503435120147. The reversal of 503435120144 is 441021534305.

It is a self number, because there is not a number n which added to its sum of digits gives 503435120144.

It is not an unprimeable number, because it can be changed into a prime (503435120147) 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 3 ways as a sum of consecutive naturals, for example, 1430213234 + ... + 1430213585.

It is an arithmetic number, because the mean of its divisors is an integer number (53203938852).

Almost surely, 2^503435120144 is an apocalyptic number.

It is an amenable number.

503435120144 is an abundant number, since it is smaller than the sum of its proper divisors (560643656896).

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

503435120144 is a wasteful number, since it uses less digits than its factorization.

503435120144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2860426838 (or 2860426832 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 503435120144 its reverse (441021534305), we get a palindrome (944456654449).

The spelling of 503435120144 in words is "five hundred three billion, four hundred thirty-five million, one hundred twenty thousand, one hundred forty-four".