1144320112 has 80 divisors (see below), whose sum is σ = 2490062848. Its totient is φ = 505854720.

The previous prime is 1144320109. The next prime is 1144320113. The reversal of 1144320112 is 2110234411.

It is a self number, because there is not a number n which added to its sum of digits gives 1144320112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144320113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 663283 + ... + 665005.

Almost surely, 2^1144320112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1144320112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1245031424).

1144320112 is an abundant number, since it is smaller than the sum of its proper divisors (1345742736).

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

1144320112 is a wasteful number, since it uses less digits than its factorization.

1144320112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1878 (or 1872 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1144320112 is about 33827.8008744287. The cubic root of 1144320112 is about 1045.9618478700.

Adding to 1144320112 its reverse (2110234411), we get a palindrome (3254554523).

The spelling of 1144320112 in words is "one billion, one hundred forty-four million, three hundred twenty thousand, one hundred twelve".