1130203 has 4 divisors (see below), whose sum is σ = 1132888. Its totient is φ = 1127520.

The previous prime is 1130191. The next prime is 1130237. The reversal of 1130203 is 3020311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1130203 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 1130203.

It is not an unprimeable number, because it can be changed into a prime (1130273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 558 + ... + 1603.

It is an arithmetic number, because the mean of its divisors is an integer number (283222).

2^1130203 is an apocalyptic number.

1130203 is a deficient number, since it is larger than the sum of its proper divisors (2685).

1130203 is an equidigital number, since it uses as much as digits as its factorization.

1130203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2684.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 1130203 is about 1063.1100601537. The cubic root of 1130203 is about 104.1642805498.

Adding to 1130203 its reverse (3020311), we get a palindrome (4150514).

It can be divided in two parts, 11 and 30203, that multiplied together give a palindrome (332233).

The spelling of 1130203 in words is "one million, one hundred thirty thousand, two hundred three".