212223032123 has 2 divisors, whose sum is σ = 212223032124. Its totient is φ = 212223032122.

The previous prime is 212223032113. The next prime is 212223032159. The reversal of 212223032123 is 321230322212.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212223032123 is a prime.

It is not a weakly prime, because it can be changed into another prime (212223032113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106111516061 + 106111516062.

It is an arithmetic number, because the mean of its divisors is an integer number (106111516062).

Almost surely, 2^212223032123 is an apocalyptic number.

212223032123 is a deficient number, since it is larger than the sum of its proper divisors (1).

212223032123 is an equidigital number, since it uses as much as digits as its factorization.

212223032123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 212223032123 its reverse (321230322212), we get a palindrome (533453354335).

The spelling of 212223032123 in words is "two hundred twelve billion, two hundred twenty-three million, thirty-two thousand, one hundred twenty-three".