1142311344 has 20 divisors (see below), whose sum is σ = 2950971096. Its totient is φ = 380770432.

The previous prime is 1142311333. The next prime is 1142311367. The reversal of 1142311344 is 4431132411.

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 an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 11899029 + ... + 11899124.

Almost surely, 2^1142311344 is an apocalyptic number.

It is an amenable number.

1142311344 is an abundant number, since it is smaller than the sum of its proper divisors (1808659752).

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

1142311344 is a wasteful number, since it uses less digits than its factorization.

1142311344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23798164 (or 23798158 counting only the distinct ones).

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

The square root of 1142311344 is about 33798.0967511486. The cubic root of 1142311344 is about 1045.3494535742.

Adding to 1142311344 its reverse (4431132411), we get a palindrome (5573443755).

The spelling of 1142311344 in words is "one billion, one hundred forty-two million, three hundred eleven thousand, three hundred forty-four".