323240140563 has 32 divisors (see below), whose sum is σ = 460010284800. Its totient is φ = 201300235776.

The previous prime is 323240140541. The next prime is 323240140567. The reversal of 323240140563 is 365041042323.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-323240140563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (323240140567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19669156 + ... + 19685582.

It is an arithmetic number, because the mean of its divisors is an integer number (14375321400).

Almost surely, 2^323240140563 is an apocalyptic number.

323240140563 is a deficient number, since it is larger than the sum of its proper divisors (136770144237).

323240140563 is a wasteful number, since it uses less digits than its factorization.

323240140563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21251.

The product of its (nonzero) digits is 51840, while the sum is 33.

Adding to 323240140563 its reverse (365041042323), we get a palindrome (688281182886).

The spelling of 323240140563 in words is "three hundred twenty-three billion, two hundred forty million, one hundred forty thousand, five hundred sixty-three".