1440314421121 has 8 divisors (see below), whose sum is σ = 1529564142600. Its totient is φ = 1351567515648.

The previous prime is 1440314421083. The next prime is 1440314421149. The reversal of 1440314421121 is 1211244130441.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 404324298225 + 1035990122896 = 635865^2 + 1017836^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1440314421121 - 2²¹ = 1440312323969 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1440314421121.

It is not an unprimeable number, because it can be changed into a prime (1440314421421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125698096 + ... + 125709553.

It is an arithmetic number, because the mean of its divisors is an integer number (191195517825).

Almost surely, 2^{1440314421121} is an apocalyptic number.

It is an amenable number.

1440314421121 is a deficient number, since it is larger than the sum of its proper divisors (89249721479).

1440314421121 is a wasteful number, since it uses less digits than its factorization.

1440314421121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251408003.

The product of its (nonzero) digits is 3072, while the sum is 28.

Adding to 1440314421121 its reverse (1211244130441), we get a palindrome (2651558551562).

The spelling of 1440314421121 in words is "one trillion, four hundred forty billion, three hundred fourteen million, four hundred twenty-one thousand, one hundred twenty-one".