503541123213 has 4 divisors (see below), whose sum is σ = 671388164288. Its totient is φ = 335694082140.

The previous prime is 503541123097. The next prime is 503541123229. The reversal of 503541123213 is 312321145305.

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 not a de Polignac number, because 503541123213 - 2²⁶ = 503474014349 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503541127213) 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, 83923520533 + ... + 83923520538.

It is an arithmetic number, because the mean of its divisors is an integer number (167847041072).

Almost surely, 2^503541123213 is an apocalyptic number.

It is an amenable number.

503541123213 is a deficient number, since it is larger than the sum of its proper divisors (167847041075).

503541123213 is a wasteful number, since it uses less digits than its factorization.

503541123213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167847041074.

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 503541123213 its reverse (312321145305), we get a palindrome (815862268518).

The spelling of 503541123213 in words is "five hundred three billion, five hundred forty-one million, one hundred twenty-three thousand, two hundred thirteen".