323140333542 has 64 divisors (see below), whose sum is σ = 705379691520. Its totient is φ = 98095981824.

The previous prime is 323140333541. The next prime is 323140333561. The reversal of 323140333542 is 245333041323.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323140333541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1649059 + ... + 1834577.

It is an arithmetic number, because the mean of its divisors is an integer number (11021557680).

Almost surely, 2^323140333542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 323140333542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (352689845760).

323140333542 is an abundant number, since it is smaller than the sum of its proper divisors (382239357978).

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

323140333542 is a wasteful number, since it uses less digits than its factorization.

323140333542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185837.

The product of its (nonzero) digits is 77760, while the sum is 33.

Adding to 323140333542 its reverse (245333041323), we get a palindrome (568473374865).

The spelling of 323140333542 in words is "three hundred twenty-three billion, one hundred forty million, three hundred thirty-three thousand, five hundred forty-two".