1143344011 has 8 divisors (see below), whose sum is σ = 1159073280. Its totient is φ = 1127646312.

The previous prime is 1143343997. The next prime is 1143344021. The reversal of 1143344011 is 1104433411.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1143344011 - 2⁵ = 1143343979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1143344021) 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, 70296 + ... + 85018.

It is an arithmetic number, because the mean of its divisors is an integer number (144884160).

Almost surely, 2^1143344011 is an apocalyptic number.

1143344011 is a deficient number, since it is larger than the sum of its proper divisors (15729269).

1143344011 is an equidigital number, since it uses as much as digits as its factorization.

1143344011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15785.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1143344011 is about 33813.3702993357. The cubic root of 1143344011 is about 1045.6643626863.

Adding to 1143344011 its reverse (1104433411), we get a palindrome (2247777422).

The spelling of 1143344011 in words is "one billion, one hundred forty-three million, three hundred forty-four thousand, eleven".