321142445112 has 64 divisors (see below), whose sum is σ = 807143546880. Its totient is φ = 106476112512.

The previous prime is 321142445111. The next prime is 321142445119. The reversal of 321142445112 is 211544241123.

It is a self number, because there is not a number n which added to its sum of digits gives 321142445112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321142445111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26012013 + ... + 26024355.

It is an arithmetic number, because the mean of its divisors is an integer number (12611617920).

Almost surely, 2^321142445112 is an apocalyptic number.

It is an amenable number.

321142445112 is an abundant number, since it is smaller than the sum of its proper divisors (486001101768).

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

321142445112 is a wasteful number, since it uses less digits than its factorization.

321142445112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18052 (or 18048 counting only the distinct ones).

The product of its digits is 7680, while the sum is 30.

Adding to 321142445112 its reverse (211544241123), we get a palindrome (532686686235).

The spelling of 321142445112 in words is "three hundred twenty-one billion, one hundred forty-two million, four hundred forty-five thousand, one hundred twelve".