323140121304 has 256 divisors, whose sum is σ = 1113984506880. Its totient is φ = 75381995520.

The previous prime is 323140121303. The next prime is 323140121323. The reversal of 323140121304 is 403121041323.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323140121303) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 707122 + ... + 1070654.

It is an arithmetic number, because the mean of its divisors is an integer number (4351501980).

Almost surely, 2^323140121304 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 323140121304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (556992253440).

323140121304 is an abundant number, since it is smaller than the sum of its proper divisors (790844385576).

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

323140121304 is a wasteful number, since it uses less digits than its factorization.

323140121304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363610 (or 363606 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 323140121304 its reverse (403121041323), we get a palindrome (726261162627).

It can be divided in two parts, 323140 and 121304, that added together give a palindrome (444444).

The spelling of 323140121304 in words is "three hundred twenty-three billion, one hundred forty million, one hundred twenty-one thousand, three hundred four".