1123232213 has 2 divisors, whose sum is σ = 1123232214. Its totient is φ = 1123232212.

The previous prime is 1123232203. The next prime is 1123232219. The reversal of 1123232213 is 3122323211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 610979524 + 512252689 = 24718^2 + 22633^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123232213 - 2²⁶ = 1056123349 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123232219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561616106 + 561616107.

It is an arithmetic number, because the mean of its divisors is an integer number (561616107).

Almost surely, 2^1123232213 is an apocalyptic number.

It is an amenable number.

1123232213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123232213 is an equidigital number, since it uses as much as digits as its factorization.

1123232213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 20.

The square root of 1123232213 is about 33514.6566892755. The cubic root of 1123232213 is about 1039.4968636931.

Adding to 1123232213 its reverse (3122323211), we get a palindrome (4245555424).

The spelling of 1123232213 in words is "one billion, one hundred twenty-three million, two hundred thirty-two thousand, two hundred thirteen".