1213443344143 has 8 divisors (see below), whose sum is σ = 1220960123856. Its totient is φ = 1205947075200.

The previous prime is 1213443344137. The next prime is 1213443344177. The reversal of 1213443344143 is 3414433443121.

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 1213443344143 - 2¹⁷ = 1213443213071 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 (1213443344543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5008996 + ... + 5245657.

It is an arithmetic number, because the mean of its divisors is an integer number (152620015482).

Almost surely, 2^{1213443344143} is an apocalyptic number.

1213443344143 is a deficient number, since it is larger than the sum of its proper divisors (7516779713).

1213443344143 is a wasteful number, since it uses less digits than its factorization.

1213443344143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10255385.

The product of its digits is 165888, while the sum is 37.

Adding to 1213443344143 its reverse (3414433443121), we get a palindrome (4627876787264).

The spelling of 1213443344143 in words is "one trillion, two hundred thirteen billion, four hundred forty-three million, three hundred forty-four thousand, one hundred forty-three".