321043344004 has 12 divisors (see below), whose sum is σ = 561836413404. Its totient is φ = 160518654464.

The previous prime is 321043343947. The next prime is 321043344007. The reversal of 321043344004 is 400443340123.

It can be written as a sum of positive squares in 2 ways, for example, as 69442790400 + 251600553604 = 263520^2 + 501598^2 .

It is not an unprimeable number, because it can be changed into a prime (321043344007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505909 + ... + 947644.

It is an arithmetic number, because the mean of its divisors is an integer number (46819701117).

Almost surely, 2^321043344004 is an apocalyptic number.

It is an amenable number.

321043344004 is a deficient number, since it is larger than the sum of its proper divisors (240793069400).

321043344004 is a wasteful number, since it uses less digits than its factorization.

321043344004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1508774 (or 1508772 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 321043344004 its reverse (400443340123), we get a palindrome (721486684127).

The spelling of 321043344004 in words is "three hundred twenty-one billion, forty-three million, three hundred forty-four thousand, four".