1143311424 has 56 divisors (see below), whose sum is σ = 3030126528. Its totient is φ = 380459520.

The previous prime is 1143311423. The next prime is 1143311431. The reversal of 1143311424 is 4241133411.

It is a super-2 number, since 2×1143311424² = 2614322024497815552, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1143311394 and 1143311403.

It is not an unprimeable number, because it can be changed into a prime (1143311423) 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, 116434 + ... + 125870.

Almost surely, 2^1143311424 is an apocalyptic number.

It is an amenable number.

1143311424 is an abundant number, since it is smaller than the sum of its proper divisors (1886815104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1143311424 is an equidigital number, since it uses as much as digits as its factorization.

1143311424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10083 (or 10073 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The square root of 1143311424 is about 33812.8884303012. Note that the first 3 decimals coincide. The cubic root of 1143311424 is about 1045.6544282635.

Adding to 1143311424 its reverse (4241133411), we get a palindrome (5384444835).

The spelling of 1143311424 in words is "one billion, one hundred forty-three million, three hundred eleven thousand, four hundred twenty-four".