1440143312443 has 4 divisors (see below), whose sum is σ = 1571065431768. Its totient is φ = 1309221193120.

The previous prime is 1440143312429. The next prime is 1440143312453. The reversal of 1440143312443 is 3442133410441.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1440143312443 - 2⁹ = 1440143311931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1440143312399 and 1440143312408.

It is not an unprimeable number, because it can be changed into a prime (1440143312453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65461059646 + ... + 65461059667.

It is an arithmetic number, because the mean of its divisors is an integer number (392766357942).

Almost surely, 2^{1440143312443} is an apocalyptic number.

1440143312443 is a deficient number, since it is larger than the sum of its proper divisors (130922119325).

1440143312443 is a wasteful number, since it uses less digits than its factorization.

1440143312443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130922119324.

The product of its (nonzero) digits is 55296, while the sum is 34.

Adding to 1440143312443 its reverse (3442133410441), we get a palindrome (4882276722884).

The spelling of 1440143312443 in words is "one trillion, four hundred forty billion, one hundred forty-three million, three hundred twelve thousand, four hundred forty-three".