240323015452321 has 2 divisors, whose sum is σ = 240323015452322. Its totient is φ = 240323015452320.

The previous prime is 240323015452283. The next prime is 240323015452327. The reversal of 240323015452321 is 123254510323042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 230975100558225 + 9347914894096 = 15197865^2 + 3057436^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240323015452321 is a prime.

It is a super-4 number, since 4×240323015452321⁴ (a number of 59 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (240323015452327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120161507726160 + 120161507726161.

It is an arithmetic number, because the mean of its divisors is an integer number (120161507726161).

Almost surely, 2^{240323015452321} is an apocalyptic number.

It is an amenable number.

240323015452321 is a deficient number, since it is larger than the sum of its proper divisors (1).

240323015452321 is an equidigital number, since it uses as much as digits as its factorization.

240323015452321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172800, while the sum is 37.

Adding to 240323015452321 its reverse (123254510323042), we get a palindrome (363577525775363).

The spelling of 240323015452321 in words is "two hundred forty trillion, three hundred twenty-three billion, fifteen million, four hundred fifty-two thousand, three hundred twenty-one".