503031512343 has 8 divisors (see below), whose sum is σ = 670899401968. Its totient is φ = 335258982144.

The previous prime is 503031512329. The next prime is 503031512353. The reversal of 503031512343 is 343215130305.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 503031512343 - 2¹⁸ = 503031250199 is a prime.

It is a super-2 number, since 2×503031512343² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 503031512343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503031512353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23827546 + ... + 23848647.

It is an arithmetic number, because the mean of its divisors is an integer number (83862425246).

Almost surely, 2^503031512343 is an apocalyptic number.

503031512343 is a deficient number, since it is larger than the sum of its proper divisors (167867889625).

503031512343 is a wasteful number, since it uses less digits than its factorization.

503031512343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47679713.

The product of its (nonzero) digits is 16200, while the sum is 30.

Adding to 503031512343 its reverse (343215130305), we get a palindrome (846246642648).

The spelling of 503031512343 in words is "five hundred three billion, thirty-one million, five hundred twelve thousand, three hundred forty-three".