503431213243 has 16 divisors (see below), whose sum is σ = 609213320640. Its totient is φ = 406116550656.

The previous prime is 503431213213. The next prime is 503431213273. The reversal of 503431213243 is 342312134305.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (503431213213) and next prime (503431213273).

It is a cyclic number.

It is not a de Polignac number, because 503431213243 - 2⁵ = 503431213211 is a prime.

It is a super-3 number, since 3×503431213243³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (503431213213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6084193 + ... + 6166381.

It is an arithmetic number, because the mean of its divisors is an integer number (38075832540).

Almost surely, 2^503431213243 is an apocalyptic number.

503431213243 is a deficient number, since it is larger than the sum of its proper divisors (105782107397).

503431213243 is a wasteful number, since it uses less digits than its factorization.

503431213243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133686.

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 503431213243 its reverse (342312134305), we get a palindrome (845743347548).

The spelling of 503431213243 in words is "five hundred three billion, four hundred thirty-one million, two hundred thirteen thousand, two hundred forty-three".