1143424243 has 8 divisors (see below), whose sum is σ = 1271102336. Its totient is φ = 1021420800.

The previous prime is 1143424187. The next prime is 1143424273. The reversal of 1143424243 is 3424243411.

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 1143424243 - 2⁹ = 1143423731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1143424273) 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, 1418238 + ... + 1419043.

It is an arithmetic number, because the mean of its divisors is an integer number (158887792).

Almost surely, 2^1143424243 is an apocalyptic number.

1143424243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1143424243 is a deficient number, since it is larger than the sum of its proper divisors (127678093).

1143424243 is a wasteful number, since it uses less digits than its factorization.

1143424243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2837325.

The product of its digits is 9216, while the sum is 28.

The square root of 1143424243 is about 33814.5566731253. The cubic root of 1143424243 is about 1045.6888212861.

Adding to 1143424243 its reverse (3424243411), we get a palindrome (4567667654).

The spelling of 1143424243 in words is "one billion, one hundred forty-three million, four hundred twenty-four thousand, two hundred forty-three".