321312322011344 has 10 divisors (see below), whose sum is σ = 622542623897010. Its totient is φ = 160656161005664.

The previous prime is 321312322011341. The next prime is 321312322011367. The reversal of 321312322011344 is 443110223213123.

It can be written as a sum of positive squares in only one way, i.e., 257075944153744 + 64236377857600 = 16033588^2 + 8014760^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 321312322011344.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321312322011341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10041010062839 + ... + 10041010062870.

It is an arithmetic number, because the mean of its divisors is an integer number (62254262389701).

Almost surely, 2^{321312322011344} is an apocalyptic number.

It is an amenable number.

321312322011344 is a deficient number, since it is larger than the sum of its proper divisors (301230301885666).

321312322011344 is a wasteful number, since it uses less digits than its factorization.

321312322011344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20082020125717 (or 20082020125711 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 321312322011344 its reverse (443110223213123), we get a palindrome (764422545224467).

The spelling of 321312322011344 in words is "three hundred twenty-one trillion, three hundred twelve billion, three hundred twenty-two million, eleven thousand, three hundred forty-four".