321342334040 has 128 divisors (see below), whose sum is σ = 895844880000. Its totient is φ = 101016834048.

The previous prime is 321342334007. The next prime is 321342334051. The reversal of 321342334040 is 40433243123.

It is a junction number, because it is equal to n+sod(n) for n = 321342333994 and 321342334012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 246116 + ... + 838604.

It is an arithmetic number, because the mean of its divisors is an integer number (6998788125).

Almost surely, 2^321342334040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 321342334040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (447922440000).

321342334040 is an abundant number, since it is smaller than the sum of its proper divisors (574502545960).

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

321342334040 is a wasteful number, since it uses less digits than its factorization.

321342334040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592669 (or 592665 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 321342334040 its reverse (40433243123), we get a palindrome (361775577163).

The spelling of 321342334040 in words is "three hundred twenty-one billion, three hundred forty-two million, three hundred thirty-four thousand, forty".