1143321143 has 8 divisors (see below), whose sum is σ = 1244996400. Its totient is φ = 1045795968.

The previous prime is 1143321103. The next prime is 1143321149. The reversal of 1143321143 is 3411233411.

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

It is a cyclic number.

It is not a de Polignac number, because 1143321143 - 2⁸ = 1143320887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143321149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1036946 + ... + 1038047.

It is an arithmetic number, because the mean of its divisors is an integer number (155624550).

Almost surely, 2^1143321143 is an apocalyptic number.

1143321143 is a deficient number, since it is larger than the sum of its proper divisors (101675257).

1143321143 is a wasteful number, since it uses less digits than its factorization.

1143321143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2075041.

The product of its digits is 864, while the sum is 23.

The square root of 1143321143 is about 33813.0321473836. The cubic root of 1143321143 is about 1045.6573912027.

Adding to 1143321143 its reverse (3411233411), we get a palindrome (4554554554).

The spelling of 1143321143 in words is "one billion, one hundred forty-three million, three hundred twenty-one thousand, one hundred forty-three".