321163413172 has 48 divisors (see below), whose sum is σ = 643268763648. Its totient is φ = 137439802080.

The previous prime is 321163413167. The next prime is 321163413191. The reversal of 321163413172 is 271314361123.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 73139097 + ... + 73143487.

It is an arithmetic number, because the mean of its divisors is an integer number (13401432576).

Almost surely, 2^321163413172 is an apocalyptic number.

It is an amenable number.

321163413172 is an abundant number, since it is smaller than the sum of its proper divisors (322105350476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321163413172 is a wasteful number, since it uses less digits than its factorization.

321163413172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7636 (or 7634 counting only the distinct ones).

The product of its digits is 18144, while the sum is 34.

Adding to 321163413172 its reverse (271314361123), we get a palindrome (592477774295).

The spelling of 321163413172 in words is "three hundred twenty-one billion, one hundred sixty-three million, four hundred thirteen thousand, one hundred seventy-two".