1143031344 has 160 divisors (see below), whose sum is σ = 3660432384. Its totient is φ = 299289600.

The previous prime is 1143031321. The next prime is 1143031387. The reversal of 1143031344 is 4431303411.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 658702 + ... + 660434.

Almost surely, 2^1143031344 is an apocalyptic number.

1143031344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1143031344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1830216192).

1143031344 is an abundant number, since it is smaller than the sum of its proper divisors (2517401040).

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

1143031344 is a wasteful number, since it uses less digits than its factorization.

1143031344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1915 (or 1909 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 1143031344 is about 33808.7465606165. The cubic root of 1143031344 is about 1045.5690357204.

Adding to 1143031344 its reverse (4431303411), we get a palindrome (5574334755).

The spelling of 1143031344 in words is "one billion, one hundred forty-three million, thirty-one thousand, three hundred forty-four".