1143312442 has 8 divisors (see below), whose sum is σ = 1715114016. Its totient is φ = 571607772.

The previous prime is 1143312437. The next prime is 1143312487. The reversal of 1143312442 is 2442133411.

It is a sphenic number, since it is the product of 3 distinct primes.

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 in 3 ways as a sum of consecutive naturals, for example, 26593 + ... + 54715.

It is an arithmetic number, because the mean of its divisors is an integer number (214389252).

Almost surely, 2^1143312442 is an apocalyptic number.

1143312442 is a deficient number, since it is larger than the sum of its proper divisors (571801574).

1143312442 is a wasteful number, since it uses less digits than its factorization.

1143312442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48452.

The product of its digits is 2304, while the sum is 25.

The square root of 1143312442 is about 33812.9034837294. The cubic root of 1143312442 is about 1045.6547386123.

Adding to 1143312442 its reverse (2442133411), we get a palindrome (3585445853).

The spelling of 1143312442 in words is "one billion, one hundred forty-three million, three hundred twelve thousand, four hundred forty-two".