1143122344 has 64 divisors (see below), whose sum is σ = 2694182400. Its totient is φ = 442589184.

The previous prime is 1143122341. The next prime is 1143122389. The reversal of 1143122344 is 4432213411.

It is not an unprimeable number, because it can be changed into a prime (1143122341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17512 + ... + 50920.

It is an arithmetic number, because the mean of its divisors is an integer number (42096600).

Almost surely, 2^1143122344 is an apocalyptic number.

1143122344 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 1143122344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1347091200).

1143122344 is an abundant number, since it is smaller than the sum of its proper divisors (1551060056).

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

1143122344 is a wasteful number, since it uses less digits than its factorization.

1143122344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33482 (or 33478 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 1143122344 is about 33810.0923394184. The cubic root of 1143122344 is about 1045.5967818995.

Adding to 1143122344 its reverse (4432213411), we get a palindrome (5575335755).

The spelling of 1143122344 in words is "one billion, one hundred forty-three million, one hundred twenty-two thousand, three hundred forty-four".