1143313042 has 4 divisors (see below), whose sum is σ = 1714969566. Its totient is φ = 571656520.

The previous prime is 1143313013. The next prime is 1143313051. The reversal of 1143313042 is 2403133411.

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

It can be written as a sum of positive squares in only one way, i.e., 742072081 + 401240961 = 27241^2 + 20031^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 285828259 + ... + 285828262.

Almost surely, 2^1143313042 is an apocalyptic number.

1143313042 is a deficient number, since it is larger than the sum of its proper divisors (571656524).

1143313042 is an equidigital number, since it uses as much as digits as its factorization.

1143313042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571656523.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1143313042 is about 33812.9123560808. The cubic root of 1143313042 is about 1045.6549215290.

Adding to 1143313042 its reverse (2403133411), we get a palindrome (3546446453).

The spelling of 1143313042 in words is "one billion, one hundred forty-three million, three hundred thirteen thousand, forty-two".