321214424320340 has 24 divisors (see below), whose sum is σ = 682129507830120. Its totient is φ = 127042109393408.

The previous prime is 321214424320337. The next prime is 321214424320351. The reversal of 321214424320340 is 43023424412123.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4716732614416 + 316497691705924 = 2171804^2 + 17790382^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 321214424320340.

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 7 ways as a sum of consecutive naturals, for example, 90228769097 + ... + 90228772656.

It is an arithmetic number, because the mean of its divisors is an integer number (28422062826255).

Almost surely, 2^{321214424320340} is an apocalyptic number.

It is an amenable number.

321214424320340 is an abundant number, since it is smaller than the sum of its proper divisors (360915083509780).

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

321214424320340 is a wasteful number, since it uses less digits than its factorization.

321214424320340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180457541851 (or 180457541849 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 35.

Adding to 321214424320340 its reverse (43023424412123), we get a palindrome (364237848732463).

The spelling of 321214424320340 in words is "three hundred twenty-one trillion, two hundred fourteen billion, four hundred twenty-four million, three hundred twenty thousand, three hundred forty".