1143324431 has 8 divisors (see below), whose sum is σ = 1160054784. Its totient is φ = 1126611640.

The previous prime is 1143324367. The next prime is 1143324439. The reversal of 1143324431 is 1344233411.

It is a happy number.

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 1143324431 - 2⁶ = 1143324367 is a prime.

It is a super-2 number, since 2×1143324431² = 2614381509042947522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1143324431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143324439) 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, 186050 + ... + 192096.

It is an arithmetic number, because the mean of its divisors is an integer number (145006848).

Almost surely, 2^1143324431 is an apocalyptic number.

1143324431 is a deficient number, since it is larger than the sum of its proper divisors (16730353).

1143324431 is an equidigital number, since it uses as much as digits as its factorization.

1143324431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8781.

The product of its digits is 3456, while the sum is 26.

The square root of 1143324431 is about 33813.0807676556. The cubic root of 1143324431 is about 1045.6583935802.

Adding to 1143324431 its reverse (1344233411), we get a palindrome (2487557842).

The spelling of 1143324431 in words is "one billion, one hundred forty-three million, three hundred twenty-four thousand, four hundred thirty-one".