123223112213 has 2 divisors, whose sum is σ = 123223112214. Its totient is φ = 123223112212.

The previous prime is 123223112189. The next prime is 123223112263. The reversal of 123223112213 is 312211322321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93365691364 + 29857420849 = 305558^2 + 172793^2 .

It is a cyclic number.

It is not a de Polignac number, because 123223112213 - 2²⁴ = 123206334997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123223112263) 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 as a sum of consecutive naturals, namely, 61611556106 + 61611556107.

It is an arithmetic number, because the mean of its divisors is an integer number (61611556107).

Almost surely, 2^123223112213 is an apocalyptic number.

It is an amenable number.

123223112213 is a deficient number, since it is larger than the sum of its proper divisors (1).

123223112213 is an equidigital number, since it uses as much as digits as its factorization.

123223112213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 23.

Adding to 123223112213 its reverse (312211322321), we get a palindrome (435434434534).

The spelling of 123223112213 in words is "one hundred twenty-three billion, two hundred twenty-three million, one hundred twelve thousand, two hundred thirteen".