503234321161 has 8 divisors (see below), whose sum is σ = 591212349504. Its totient is φ = 422294535120.

The previous prime is 503234321087. The next prime is 503234321189. The reversal of 503234321161 is 161123432305.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 503234321161 - 2⁷ = 503234321033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (503234321561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1759560421 + ... + 1759560706.

It is an arithmetic number, because the mean of its divisors is an integer number (73901543688).

Almost surely, 2^503234321161 is an apocalyptic number.

It is an amenable number.

503234321161 is a deficient number, since it is larger than the sum of its proper divisors (87978028343).

503234321161 is a wasteful number, since it uses less digits than its factorization.

503234321161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3519121151.

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 503234321161 its reverse (161123432305), we get a palindrome (664357753466).

It can be divided in two parts, 5032343 and 21161, that added together give a square (5053504 = 2248²).

The spelling of 503234321161 in words is "five hundred three billion, two hundred thirty-four million, three hundred twenty-one thousand, one hundred sixty-one".