1123320233213 has 2 divisors, whose sum is σ = 1123320233214. Its totient is φ = 1123320233212.

The previous prime is 1123320233201. The next prime is 1123320233237. The reversal of 1123320233213 is 3123320233211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1121135792569 + 2184440644 = 1058837^2 + 46738^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123320233213 - 2¹² = 1123320229117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123320233263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561660116606 + 561660116607.

It is an arithmetic number, because the mean of its divisors is an integer number (561660116607).

Almost surely, 2^{1123320233213} is an apocalyptic number.

It is an amenable number.

1123320233213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123320233213 is an equidigital number, since it uses as much as digits as its factorization.

1123320233213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 1123320233213 its reverse (3123320233211), we get a palindrome (4246640466424).

The spelling of 1123320233213 in words is "one trillion, one hundred twenty-three billion, three hundred twenty million, two hundred thirty-three thousand, two hundred thirteen".