321111303112 has 16 divisors (see below), whose sum is σ = 607710645360. Its totient is φ = 159055131024.

The previous prime is 321111303091. The next prime is 321111303167. The reversal of 321111303112 is 211303111123.

It is a super-2 number, since 2×321111303112² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 321111303112.

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 3 ways as a sum of consecutive naturals, for example, 187564158 + ... + 187565869.

It is an arithmetic number, because the mean of its divisors is an integer number (37981915335).

Almost surely, 2^321111303112 is an apocalyptic number.

It is an amenable number.

321111303112 is a deficient number, since it is larger than the sum of its proper divisors (286599342248).

321111303112 is a wasteful number, since it uses less digits than its factorization.

321111303112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375130140 (or 375130136 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 321111303112 its reverse (211303111123), we get a palindrome (532414414235).

The spelling of 321111303112 in words is "three hundred twenty-one billion, one hundred eleven million, three hundred three thousand, one hundred twelve".