1143443203 has 4 divisors (see below), whose sum is σ = 1306792240. Its totient is φ = 980094168.

The previous prime is 1143443179. The next prime is 1143443209. The reversal of 1143443203 is 3023443411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1143443203 - 2²⁵ = 1109888771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1143443209) 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 3 ways as a sum of consecutive naturals, for example, 81674508 + ... + 81674521.

It is an arithmetic number, because the mean of its divisors is an integer number (326698060).

Almost surely, 2^1143443203 is an apocalyptic number.

1143443203 is a deficient number, since it is larger than the sum of its proper divisors (163349037).

1143443203 is an equidigital number, since it uses as much as digits as its factorization.

1143443203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163349036.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 1143443203 is about 33814.8370245962. The cubic root of 1143443203 is about 1045.6946010453.

Adding to 1143443203 its reverse (3023443411), we get a palindrome (4166886614).

The spelling of 1143443203 in words is "one billion, one hundred forty-three million, four hundred forty-three thousand, two hundred three".