503423021362173 has 16 divisors (see below), whose sum is σ = 732811921261056. Its totient is φ = 304871422337840.

The previous prime is 503423021362123. The next prime is 503423021362223. The reversal of 503423021362173 is 371263120324305.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (503423021362123) and next prime (503423021362223).

It is a cyclic number.

It is not a de Polignac number, because 503423021362173 - 2¹⁷ = 503423021231101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503423021362103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5835933561 + ... + 5836019822.

It is an arithmetic number, because the mean of its divisors is an integer number (45800745078816).

Almost surely, 2^{503423021362173} is an apocalyptic number.

It is an amenable number.

503423021362173 is a deficient number, since it is larger than the sum of its proper divisors (229388899898883).

503423021362173 is a wasteful number, since it uses less digits than its factorization.

503423021362173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11671954704.

The product of its (nonzero) digits is 544320, while the sum is 42.

Adding to 503423021362173 its reverse (371263120324305), we get a palindrome (874686141686478).

The spelling of 503423021362173 in words is "five hundred three trillion, four hundred twenty-three billion, twenty-one million, three hundred sixty-two thousand, one hundred seventy-three".