503131313344 has 56 divisors (see below), whose sum is σ = 1109715309648. Its totient is φ = 224381015040.

The previous prime is 503131313323. The next prime is 503131313371. The reversal of 503131313344 is 443313131305.

It is a super-2 number, since 2×503131313344² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6704907 + ... + 6779530.

Almost surely, 2^503131313344 is an apocalyptic number.

It is an amenable number.

503131313344 is an abundant number, since it is smaller than the sum of its proper divisors (606583996304).

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

503131313344 is a wasteful number, since it uses less digits than its factorization.

503131313344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13484513 (or 13484503 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 31.

Adding to 503131313344 its reverse (443313131305), we get a palindrome (946444444649).

The spelling of 503131313344 in words is "five hundred three billion, one hundred thirty-one million, three hundred thirteen thousand, three hundred forty-four".