1133243423 has 4 divisors (see below), whose sum is σ = 1220416008. Its totient is φ = 1046070840.

The previous prime is 1133243413. The next prime is 1133243491. The reversal of 1133243423 is 3243423311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3243423311 = 601 ⋅5396711.

It is a cyclic number.

It is not a de Polignac number, because 1133243423 - 2⁶ = 1133243359 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1133243392 and 1133243401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133243413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43586273 + ... + 43586298.

It is an arithmetic number, because the mean of its divisors is an integer number (305104002).

Almost surely, 2^1133243423 is an apocalyptic number.

1133243423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1133243423 is a deficient number, since it is larger than the sum of its proper divisors (87172585).

1133243423 is an equidigital number, since it uses as much as digits as its factorization.

1133243423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87172584.

The product of its digits is 5184, while the sum is 26.

The square root of 1133243423 is about 33663.6810672867. The cubic root of 1133243423 is about 1042.5760298952.

Adding to 1133243423 its reverse (3243423311), we get a palindrome (4376666734).

The spelling of 1133243423 in words is "one billion, one hundred thirty-three million, two hundred forty-three thousand, four hundred twenty-three".