1131230403 has 6 divisors (see below), whose sum is σ = 1633999484. Its totient is φ = 754153596.

The previous prime is 1131230383. The next prime is 1131230453. The reversal of 1131230403 is 3040321311.

1131230403 is a `hidden beast` number, since 1 + 1 + 31 + 230 + 403 = 666.

It is not a de Polignac number, because 1131230403 - 2⁸ = 1131230147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131230453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62846125 + ... + 62846142.

Almost surely, 2^1131230403 is an apocalyptic number.

1131230403 is a deficient number, since it is larger than the sum of its proper divisors (502769081).

1131230403 is a wasteful number, since it uses less digits than its factorization.

1131230403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125692273 (or 125692270 counting only the distinct ones).

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

The square root of 1131230403 is about 33633.7687897149. The cubic root of 1131230403 is about 1041.9583425666.

Adding to 1131230403 its reverse (3040321311), we get a palindrome (4171551714).

The spelling of 1131230403 in words is "one billion, one hundred thirty-one million, two hundred thirty thousand, four hundred three".