503306831020 has 72 divisors (see below), whose sum is σ = 1229982770016. Its totient is φ = 172495524096.

The previous prime is 503306831011. The next prime is 503306831081. The reversal of 503306831020 is 20138603305.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2466537 + ... + 2662783.

It is an arithmetic number, because the mean of its divisors is an integer number (17083094028).

Almost surely, 2^503306831020 is an apocalyptic number.

It is an amenable number.

503306831020 is an abundant number, since it is smaller than the sum of its proper divisors (726675938996).

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

503306831020 is a wasteful number, since it uses less digits than its factorization.

503306831020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198887 (or 198878 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The spelling of 503306831020 in words is "five hundred three billion, three hundred six million, eight hundred thirty-one thousand, twenty".