503052421213 has 4 divisors (see below), whose sum is σ = 506671503520. Its totient is φ = 499433338908.

The previous prime is 503052421159. The next prime is 503052421241. The reversal of 503052421213 is 312124250305.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 503052421213 - 2³³ = 494462486621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503052421253) 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, 1809540945 + ... + 1809541222.

It is an arithmetic number, because the mean of its divisors is an integer number (126667875880).

Almost surely, 2^503052421213 is an apocalyptic number.

It is an amenable number.

503052421213 is a deficient number, since it is larger than the sum of its proper divisors (3619082307).

503052421213 is a wasteful number, since it uses less digits than its factorization.

503052421213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3619082306.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 503052421213 its reverse (312124250305), we get a palindrome (815176671518).

The spelling of 503052421213 in words is "five hundred three billion, fifty-two million, four hundred twenty-one thousand, two hundred thirteen".