1143012303 has 10 divisors (see below), whose sum is σ = 1707462944. Its totient is φ = 762008148.

The previous prime is 1143012271. The next prime is 1143012329. The reversal of 1143012303 is 3032103411.

1143012303 is a `hidden beast` number, since 1 + 1 + 430 + 1 + 230 + 3 = 666.

It is not a de Polignac number, because 1143012303 - 2⁵ = 1143012271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143012503) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 7055551 + ... + 7055712.

Almost surely, 2^1143012303 is an apocalyptic number.

1143012303 is a deficient number, since it is larger than the sum of its proper divisors (564450641).

1143012303 is an equidigital number, since it uses as much as digits as its factorization.

1143012303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14111275 (or 14111266 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1143012303 is about 33808.4649607166. The cubic root of 1143012303 is about 1045.5632298747.

Adding to 1143012303 its reverse (3032103411), we get a palindrome (4175115714).

The spelling of 1143012303 in words is "one billion, one hundred forty-three million, twelve thousand, three hundred three".