1143310203 has 48 divisors (see below), whose sum is σ = 1947119616. Its totient is φ = 632923200.

The previous prime is 1143310193. The next prime is 1143310253. The reversal of 1143310203 is 3020133411.

It is not a de Polignac number, because 1143310203 - 2⁵ = 1143310171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1143310253) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 297150 + ... + 300972.

It is an arithmetic number, because the mean of its divisors is an integer number (40564992).

Almost surely, 2^1143310203 is an apocalyptic number.

1143310203 is a deficient number, since it is larger than the sum of its proper divisors (803809413).

1143310203 is a wasteful number, since it uses less digits than its factorization.

1143310203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3984 (or 3981 counting only the distinct ones).

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

The square root of 1143310203 is about 33812.8703750510. The cubic root of 1143310203 is about 1045.6540560277.

Adding to 1143310203 its reverse (3020133411), we get a palindrome (4163443614).

The spelling of 1143310203 in words is "one billion, one hundred forty-three million, three hundred ten thousand, two hundred three".