323340421240 has 128 divisors (see below), whose sum is σ = 756405112320. Its totient is φ = 124304140800.

The previous prime is 323340421219. The next prime is 323340421267. The reversal of 323340421240 is 42124043323.

It is a junction number, because it is equal to n+sod(n) for n = 323340421199 and 323340421208.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 69728202 + ... + 69732838.

It is an arithmetic number, because the mean of its divisors is an integer number (5909414940).

Almost surely, 2^323340421240 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 323340421240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (378202556160).

323340421240 is an abundant number, since it is smaller than the sum of its proper divisors (433064691080).

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

323340421240 is a wasteful number, since it uses less digits than its factorization.

323340421240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5333 (or 5329 counting only the distinct ones).

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

Adding to 323340421240 its reverse (42124043323), we get a palindrome (365464464563).

The spelling of 323340421240 in words is "three hundred twenty-three billion, three hundred forty million, four hundred twenty-one thousand, two hundred forty".