1143321443 has 8 divisors (see below), whose sum is σ = 1260119280. Its totient is φ = 1028666880.

The previous prime is 1143321419. The next prime is 1143321469. The reversal of 1143321443 is 3441233411.

It is a happy number.

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 1143321443 - 2¹⁸ = 1143059299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1143327443) 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, 534698 + ... + 536831.

It is an arithmetic number, because the mean of its divisors is an integer number (157514910).

Almost surely, 2^1143321443 is an apocalyptic number.

1143321443 is a deficient number, since it is larger than the sum of its proper divisors (116797837).

1143321443 is a wasteful number, since it uses less digits than its factorization.

1143321443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071637.

The product of its digits is 3456, while the sum is 26.

The square root of 1143321443 is about 33813.0365835427. The cubic root of 1143321443 is about 1045.6574826606.

Adding to 1143321443 its reverse (3441233411), we get a palindrome (4584554854).

The spelling of 1143321443 in words is "one billion, one hundred forty-three million, three hundred twenty-one thousand, four hundred forty-three".