1143211112 has 16 divisors (see below), whose sum is σ = 2163555360. Its totient is φ = 566263024.

The previous prime is 1143211109. The next prime is 1143211123. The reversal of 1143211112 is 2111123411.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 666908 + ... + 668619.

It is an arithmetic number, because the mean of its divisors is an integer number (135222210).

Almost surely, 2^1143211112 is an apocalyptic number.

It is an amenable number.

1143211112 is a deficient number, since it is larger than the sum of its proper divisors (1020344248).

1143211112 is a wasteful number, since it uses less digits than its factorization.

1143211112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335640 (or 1335636 counting only the distinct ones).

The product of its digits is 48, while the sum is 17.

The square root of 1143211112 is about 33811.4050580570. The cubic root of 1143211112 is about 1045.6238461163.

Adding to 1143211112 its reverse (2111123411), we get a palindrome (3254334523).

The spelling of 1143211112 in words is "one billion, one hundred forty-three million, two hundred eleven thousand, one hundred twelve".