1131230203 has 2 divisors, whose sum is σ = 1131230204. Its totient is φ = 1131230202.

The previous prime is 1131230179. The next prime is 1131230209. The reversal of 1131230203 is 3020321311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1131230203 - 2¹³ = 1131222011 is a prime.

It is not a weakly prime, because it can be changed into another prime (1131230209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565615101 + 565615102.

It is an arithmetic number, because the mean of its divisors is an integer number (565615102).

Almost surely, 2^1131230203 is an apocalyptic number.

1131230203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131230203 is an equidigital number, since it uses as much as digits as its factorization.

1131230203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1131230203 is about 33633.7658165124. The cubic root of 1131230203 is about 1041.9582811610.

Adding to 1131230203 its reverse (3020321311), we get a palindrome (4151551514).

The spelling of 1131230203 in words is "one billion, one hundred thirty-one million, two hundred thirty thousand, two hundred three".