1103303143 has 4 divisors (see below), whose sum is σ = 1114014928. Its totient is φ = 1092591360.

The previous prime is 1103303119. The next prime is 1103303161. The reversal of 1103303143 is 3413033011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3413033011 = 3089 ⋅1104899.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1103303143 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 1103303143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103303183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5355738 + ... + 5355943.

It is an arithmetic number, because the mean of its divisors is an integer number (278503732).

Almost surely, 2^1103303143 is an apocalyptic number.

1103303143 is a deficient number, since it is larger than the sum of its proper divisors (10711785).

1103303143 is a wasteful number, since it uses less digits than its factorization.

1103303143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10711784.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1103303143 is about 33216.0073308036. The cubic root of 1103303143 is about 1033.3123462150.

Adding to 1103303143 its reverse (3413033011), we get a palindrome (4516336154).

The spelling of 1103303143 in words is "one billion, one hundred three million, three hundred three thousand, one hundred forty-three".