1143211235 has 8 divisors (see below), whose sum is σ = 1372975296. Its totient is φ = 913821120.

The previous prime is 1143211217. The next prime is 1143211249. The reversal of 1143211235 is 5321123411.

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

It is not a de Polignac number, because 1143211235 - 2⁸ = 1143210979 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1143211235.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86714 + ... + 99023.

It is an arithmetic number, because the mean of its divisors is an integer number (171621912).

Almost surely, 2^1143211235 is an apocalyptic number.

1143211235 is a deficient number, since it is larger than the sum of its proper divisors (229764061).

1143211235 is a wasteful number, since it uses less digits than its factorization.

1143211235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186973.

The product of its digits is 720, while the sum is 23.

The square root of 1143211235 is about 33811.4068769698. The cubic root of 1143211235 is about 1045.6238836164.

Adding to 1143211235 its reverse (5321123411), we get a palindrome (6464334646).

The spelling of 1143211235 in words is "one billion, one hundred forty-three million, two hundred eleven thousand, two hundred thirty-five".