1143304203 has 16 divisors (see below), whose sum is σ = 1537911936. Its totient is φ = 755464320.

The previous prime is 1143304199. The next prime is 1143304249. The reversal of 1143304203 is 3024033411.

It is not a de Polignac number, because 1143304203 - 2² = 1143304199 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1143304203.

It is not an unprimeable number, because it can be changed into a prime (1143304103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 508600 + ... + 510842.

It is an arithmetic number, because the mean of its divisors is an integer number (96119496).

Almost surely, 2^1143304203 is an apocalyptic number.

1143304203 is a deficient number, since it is larger than the sum of its proper divisors (394607733).

1143304203 is a wasteful number, since it uses less digits than its factorization.

1143304203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3674.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1143304203 is about 33812.7816513223. The cubic root of 1143304203 is about 1045.6522268550.

Adding to 1143304203 its reverse (3024033411), we get a palindrome (4167337614).

The spelling of 1143304203 in words is "one billion, one hundred forty-three million, three hundred four thousand, two hundred three".