240543241452321 has 4 divisors (see below), whose sum is σ = 320724321936432. Its totient is φ = 160362160968212.

The previous prime is 240543241452301. The next prime is 240543241452379. The reversal of 240543241452321 is 123254142345042.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 240543241452321 - 2⁵ = 240543241452289 is a prime.

It is a super-2 number, since 2×240543241452321² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (240543241452301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40090540242051 + ... + 40090540242056.

It is an arithmetic number, because the mean of its divisors is an integer number (80181080484108).

Almost surely, 2^{240543241452321} is an apocalyptic number.

It is an amenable number.

240543241452321 is a deficient number, since it is larger than the sum of its proper divisors (80181080484111).

240543241452321 is an equidigital number, since it uses as much as digits as its factorization.

240543241452321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80181080484110.

The product of its (nonzero) digits is 921600, while the sum is 42.

Adding to 240543241452321 its reverse (123254142345042), we get a palindrome (363797383797363).

The spelling of 240543241452321 in words is "two hundred forty trillion, five hundred forty-three billion, two hundred forty-one million, four hundred fifty-two thousand, three hundred twenty-one".