1143433311 has 16 divisors (see below), whose sum is σ = 1657890144. Its totient is φ = 698056704.

The previous prime is 1143433283. The next prime is 1143433337. The reversal of 1143433311 is 1133343411.

It is not a de Polignac number, because 1143433311 - 2¹⁰ = 1143432287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143433391) 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, 301090 + ... + 304863.

It is an arithmetic number, because the mean of its divisors is an integer number (103618134).

Almost surely, 2^1143433311 is an apocalyptic number.

1143433311 is a deficient number, since it is larger than the sum of its proper divisors (514456833).

1143433311 is a wasteful number, since it uses less digits than its factorization.

1143433311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606010.

The product of its digits is 1296, while the sum is 24.

The square root of 1143433311 is about 33814.6907571251. The cubic root of 1143433311 is about 1045.6915855797.

Adding to 1143433311 its reverse (1133343411), we get a palindrome (2276776722).

The spelling of 1143433311 in words is "one billion, one hundred forty-three million, four hundred thirty-three thousand, three hundred eleven".