1440144124021 has 4 divisors (see below), whose sum is σ = 1515941183200. Its totient is φ = 1364347064844.

The previous prime is 1440144123997. The next prime is 1440144124093. The reversal of 1440144124021 is 1204214410441.

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 1440144124021 - 2⁵ = 1440144123989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440144124421) 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, 37898529561 + ... + 37898529598.

It is an arithmetic number, because the mean of its divisors is an integer number (378985295800).

Almost surely, 2^{1440144124021} is an apocalyptic number.

It is an amenable number.

1440144124021 is a deficient number, since it is larger than the sum of its proper divisors (75797059179).

1440144124021 is an equidigital number, since it uses as much as digits as its factorization.

1440144124021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75797059178.

The product of its (nonzero) digits is 4096, while the sum is 28.

Adding to 1440144124021 its reverse (1204214410441), we get a palindrome (2644358534462).

The spelling of 1440144124021 in words is "one trillion, four hundred forty billion, one hundred forty-four million, one hundred twenty-four thousand, twenty-one".