1143303243 has 16 divisors (see below), whose sum is σ = 1538603136. Its totient is φ = 755136000.

The previous prime is 1143303241. The next prime is 1143303253. The reversal of 1143303243 is 3423033411.

It is not a de Polignac number, because 1143303243 - 2¹ = 1143303241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1143303241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141396 + ... + 149262.

It is an arithmetic number, because the mean of its divisors is an integer number (96162696).

Almost surely, 2^1143303243 is an apocalyptic number.

1143303243 is a deficient number, since it is larger than the sum of its proper divisors (395299893).

1143303243 is a wasteful number, since it uses less digits than its factorization.

1143303243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8314.

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 1143303243 is about 33812.7674555041. The cubic root of 1143303243 is about 1045.6519341868.

Adding to 1143303243 its reverse (3423033411), we get a palindrome (4566336654).

The spelling of 1143303243 in words is "one billion, one hundred forty-three million, three hundred three thousand, two hundred forty-three".