503052423002123 has 4 divisors (see below), whose sum is σ = 503060734269600. Its totient is φ = 503044111734648.

The previous prime is 503052423002117. The next prime is 503052423002141. The reversal of 503052423002123 is 321200324250305.

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 503052423002123 - 2⁸ = 503052423001867 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 503052423002123.

It is not an unprimeable number, because it can be changed into a prime (503052423004123) 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 3 ways as a sum of consecutive naturals, for example, 4155542948 + ... + 4155664001.

It is an arithmetic number, because the mean of its divisors is an integer number (125765183567400).

Almost surely, 2^{503052423002123} is an apocalyptic number.

503052423002123 is a deficient number, since it is larger than the sum of its proper divisors (8311267477).

503052423002123 is an equidigital number, since it uses as much as digits as its factorization.

503052423002123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8311267476.

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 503052423002123 its reverse (321200324250305), we get a palindrome (824252747252428).

The spelling of 503052423002123 in words is "five hundred three trillion, fifty-two billion, four hundred twenty-three million, two thousand, one hundred twenty-three".