40323232321 has 2 divisors, whose sum is σ = 40323232322. Its totient is φ = 40323232320.

The previous prime is 40323232307. The next prime is 40323232343. The reversal of 40323232321 is 12323232304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34257937921 + 6065294400 = 185089^2 + 77880^2 .

It is a cyclic number.

It is not a de Polignac number, because 40323232321 - 2¹¹ = 40323230273 is a prime.

It is not a weakly prime, because it can be changed into another prime (40323232351) by changing a digit.

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 as a sum of consecutive naturals, namely, 20161616160 + 20161616161.

It is an arithmetic number, because the mean of its divisors is an integer number (20161616161).

Almost surely, 2^40323232321 is an apocalyptic number.

It is an amenable number.

40323232321 is a deficient number, since it is larger than the sum of its proper divisors (1).

40323232321 is an equidigital number, since it uses as much as digits as its factorization.

40323232321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 40323232321 its reverse (12323232304), we get a palindrome (52646464625).

The spelling of 40323232321 in words is "forty billion, three hundred twenty-three million, two hundred thirty-two thousand, three hundred twenty-one".