1143211443 has 16 divisors (see below), whose sum is σ = 1663998336. Its totient is φ = 692378240.

The previous prime is 1143211439. The next prime is 1143211451. The reversal of 1143211443 is 3441123411.

It is a cyclic number.

It is not a de Polignac number, because 1143211443 - 2² = 1143211439 is a prime.

It is a super-2 number, since 2×1143211443² = 2613864806812284498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1143211403) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 40096 + ... + 62402.

It is an arithmetic number, because the mean of its divisors is an integer number (103999896).

Almost surely, 2^1143211443 is an apocalyptic number.

1143211443 is a deficient number, since it is larger than the sum of its proper divisors (520786893).

1143211443 is a wasteful number, since it uses less digits than its factorization.

1143211443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23874.

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

The square root of 1143211443 is about 33811.4099528547. The cubic root of 1143211443 is about 1045.6239470313.

Adding to 1143211443 its reverse (3441123411), we get a palindrome (4584334854).

The spelling of 1143211443 in words is "one billion, one hundred forty-three million, two hundred eleven thousand, four hundred forty-three".