1440343253013 has 16 divisors (see below), whose sum is σ = 2198707201536. Its totient is φ = 821591374320.

The previous prime is 1440343252973. The next prime is 1440343253023. The reversal of 1440343253013 is 3103523430441.

It is not a de Polignac number, because 1440343253013 - 2¹⁸ = 1440342990869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440343253023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60900943 + ... + 60924588.

It is an arithmetic number, because the mean of its divisors is an integer number (137419200096).

Almost surely, 2^{1440343253013} is an apocalyptic number.

It is an amenable number.

1440343253013 is a deficient number, since it is larger than the sum of its proper divisors (758363948523).

1440343253013 is a wasteful number, since it uses less digits than its factorization.

1440343253013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121826104.

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

Adding to 1440343253013 its reverse (3103523430441), we get a palindrome (4543866683454).

The spelling of 1440343253013 in words is "one trillion, four hundred forty billion, three hundred forty-three million, two hundred fifty-three thousand, thirteen".