1143444211 has 16 divisors (see below), whose sum is σ = 1408363264. Its totient is φ = 904029984.

The previous prime is 1143444179. The next prime is 1143444217. The reversal of 1143444211 is 1124443411.

It is not a de Polignac number, because 1143444211 - 2⁵ = 1143444179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1143444217) 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, 144196 + ... + 151918.

It is an arithmetic number, because the mean of its divisors is an integer number (88022704).

Almost surely, 2^1143444211 is an apocalyptic number.

1143444211 is a deficient number, since it is larger than the sum of its proper divisors (264919053).

1143444211 is a wasteful number, since it uses less digits than its factorization.

1143444211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9370.

The product of its digits is 1536, while the sum is 25.

The square root of 1143444211 is about 33814.8519292928. The cubic root of 1143444211 is about 1045.6949083219.

Adding to 1143444211 its reverse (1124443411), we get a palindrome (2267887622).

The spelling of 1143444211 in words is "one billion, one hundred forty-three million, four hundred forty-four thousand, two hundred eleven".