1123433213 has 8 divisors (see below), whose sum is σ = 1302007680. Its totient is φ = 949379760.

The previous prime is 1123433203. The next prime is 1123433249. The reversal of 1123433213 is 3123343211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1123433213 - 2¹² = 1123429117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123433203) 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 in 7 ways as a sum of consecutive naturals, for example, 1129718 + ... + 1130711.

It is an arithmetic number, because the mean of its divisors is an integer number (162750960).

Almost surely, 2^1123433213 is an apocalyptic number.

It is an amenable number.

1123433213 is a deficient number, since it is larger than the sum of its proper divisors (178574467).

1123433213 is an equidigital number, since it uses as much as digits as its factorization.

1123433213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2260507.

The product of its digits is 1296, while the sum is 23.

The square root of 1123433213 is about 33517.6552431700. The cubic root of 1123433213 is about 1039.5588652411.

Adding to 1123433213 its reverse (3123343211), we get a palindrome (4246776424).

The spelling of 1123433213 in words is "one billion, one hundred twenty-three million, four hundred thirty-three thousand, two hundred thirteen".