503134044503123 has 4 divisors (see below), whose sum is σ = 548873503094328. Its totient is φ = 457394585911920.

The previous prime is 503134044503117. The next prime is 503134044503143. The reversal of 503134044503123 is 321305440431305.

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 503134044503123 - 2¹⁴ = 503134044486739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (503134044503143) 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, 22869729295586 + ... + 22869729295607.

It is an arithmetic number, because the mean of its divisors is an integer number (137218375773582).

Almost surely, 2^{503134044503123} is an apocalyptic number.

503134044503123 is a deficient number, since it is larger than the sum of its proper divisors (45739458591205).

503134044503123 is a wasteful number, since it uses less digits than its factorization.

503134044503123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45739458591204.

The product of its (nonzero) digits is 259200, while the sum is 38.

Adding to 503134044503123 its reverse (321305440431305), we get a palindrome (824439484934428).

The spelling of 503134044503123 in words is "five hundred three trillion, one hundred thirty-four billion, forty-four million, five hundred three thousand, one hundred twenty-three".