1223443244313 has 12 divisors (see below), whose sum is σ = 1767208291108. Its totient is φ = 815623063200.

The previous prime is 1223443244239. The next prime is 1223443244333. The reversal of 1223443244313 is 3134423443221.

1223443244313 is a `hidden beast` number, since 12 + 2 + 3 + 4 + 4 + 324 + 4 + 313 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1193093074944 + 30350169369 = 1092288^2 + 174213^2 .

It is not a de Polignac number, because 1223443244313 - 2¹³ = 1223443236121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223443244333) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1156863 + ... + 1945563.

Almost surely, 2^{1223443244313} is an apocalyptic number.

It is an amenable number.

1223443244313 is a deficient number, since it is larger than the sum of its proper divisors (543765046795).

1223443244313 is a wasteful number, since it uses less digits than its factorization.

1223443244313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961064 (or 961061 counting only the distinct ones).

The product of its digits is 165888, while the sum is 36.

Adding to 1223443244313 its reverse (3134423443221), we get a palindrome (4357866687534).

The spelling of 1223443244313 in words is "one trillion, two hundred twenty-three billion, four hundred forty-three million, two hundred forty-four thousand, three hundred thirteen".