1243444310441 has 8 divisors (see below), whose sum is σ = 1254021648264. Its totient is φ = 1232910058240.

The previous prime is 1243444310393. The next prime is 1243444310447. The reversal of 1243444310441 is 1440134443421.

It can be written as a sum of positive squares in 4 ways, for example, as 1076812988416 + 166631322025 = 1037696^2 + 408205^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1243444310441 is a prime.

It is a super-2 number, since 2×1243444310441² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1243444310447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10713440 + ... + 10828881.

It is an arithmetic number, because the mean of its divisors is an integer number (156752706033).

Almost surely, 2^{1243444310441} is an apocalyptic number.

It is an amenable number.

1243444310441 is a deficient number, since it is larger than the sum of its proper divisors (10577337823).

1243444310441 is a wasteful number, since it uses less digits than its factorization.

1243444310441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21542811.

The product of its (nonzero) digits is 73728, while the sum is 35.

Adding to 1243444310441 its reverse (1440134443421), we get a palindrome (2683578753862).

The spelling of 1243444310441 in words is "one trillion, two hundred forty-three billion, four hundred forty-four million, three hundred ten thousand, four hundred forty-one".