503234363161 has 2 divisors, whose sum is σ = 503234363162. Its totient is φ = 503234363160.

The previous prime is 503234363129. The next prime is 503234363207. The reversal of 503234363161 is 161363432305.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 503221403161 + 12960000 = 709381^2 + 3600^2 .

It is a cyclic number.

It is not a de Polignac number, because 503234363161 - 2⁵ = 503234363129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 503234363161.

It is not a weakly prime, because it can be changed into another prime (503234363561) 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 as a sum of consecutive naturals, namely, 251617181580 + 251617181581.

It is an arithmetic number, because the mean of its divisors is an integer number (251617181581).

Almost surely, 2^503234363161 is an apocalyptic number.

It is an amenable number.

503234363161 is a deficient number, since it is larger than the sum of its proper divisors (1).

503234363161 is an equidigital number, since it uses as much as digits as its factorization.

503234363161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 37.

Adding to 503234363161 its reverse (161363432305), we get a palindrome (664597795466).

The spelling of 503234363161 in words is "five hundred three billion, two hundred thirty-four million, three hundred sixty-three thousand, one hundred sixty-one".