503261424434431 has 4 divisors (see below), whose sum is σ = 541973841698632. Its totient is φ = 464549007170232.

The previous prime is 503261424434369. The next prime is 503261424434449. The reversal of 503261424434431 is 134434424162305.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 503261424434431 - 2⁹ = 503261424433919 is a prime.

It is a super-2 number, since 2×503261424434431² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503261424431431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19356208632081 + ... + 19356208632106.

It is an arithmetic number, because the mean of its divisors is an integer number (135493460424658).

Almost surely, 2^{503261424434431} is an apocalyptic number.

503261424434431 is a deficient number, since it is larger than the sum of its proper divisors (38712417264201).

503261424434431 is a wasteful number, since it uses less digits than its factorization.

503261424434431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38712417264200.

The product of its (nonzero) digits is 3317760, while the sum is 46.

Adding to 503261424434431 its reverse (134434424162305), we get a palindrome (637695848596736).

The spelling of 503261424434431 in words is "five hundred three trillion, two hundred sixty-one billion, four hundred twenty-four million, four hundred thirty-four thousand, four hundred thirty-one".