1440321213073 has 2 divisors, whose sum is σ = 1440321213074. Its totient is φ = 1440321213072.

The previous prime is 1440321213053. The next prime is 1440321213139. The reversal of 1440321213073 is 3703121230441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1260652892944 + 179668320129 = 1122788^2 + 423873^2 .

It is an emirp because it is prime and its reverse (3703121230441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1440321213073 - 2¹⁷ = 1440321082001 is a prime.

It is a super-2 number, since 2×1440321213073² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1440321213013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720160606536 + 720160606537.

It is an arithmetic number, because the mean of its divisors is an integer number (720160606537).

Almost surely, 2^{1440321213073} is an apocalyptic number.

It is an amenable number.

1440321213073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1440321213073 is an equidigital number, since it uses as much as digits as its factorization.

1440321213073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 31.

The spelling of 1440321213073 in words is "one trillion, four hundred forty billion, three hundred twenty-one million, two hundred thirteen thousand, seventy-three".