1143203133 has 4 divisors (see below), whose sum is σ = 1524270848. Its totient is φ = 762135420.

The previous prime is 1143203129. The next prime is 1143203147. The reversal of 1143203133 is 3313023411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1143203133 - 2² = 1143203129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143203183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190533853 + ... + 190533858.

It is an arithmetic number, because the mean of its divisors is an integer number (381067712).

Almost surely, 2^1143203133 is an apocalyptic number.

It is an amenable number.

1143203133 is a deficient number, since it is larger than the sum of its proper divisors (381067715).

1143203133 is an equidigital number, since it uses as much as digits as its factorization.

1143203133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381067714.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 1143203133 is about 33811.2870651207. The cubic root of 1143203133 is about 1045.6214134795.

Adding to 1143203133 its reverse (3313023411), we get a palindrome (4456226544).

The spelling of 1143203133 in words is "one billion, one hundred forty-three million, two hundred three thousand, one hundred thirty-three".