12103123223 has 2 divisors, whose sum is σ = 12103123224. Its totient is φ = 12103123222.

The previous prime is 12103123213. The next prime is 12103123271. The reversal of 12103123223 is 32232130121.

It is a weak prime.

It is an emirp because it is prime and its reverse (32232130121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12103123223 - 2¹⁸ = 12102861079 is a prime.

It is a super-2 number, since 2×12103123223² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 12103123195 and 12103123204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12103123213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6051561611 + 6051561612.

It is an arithmetic number, because the mean of its divisors is an integer number (6051561612).

Almost surely, 2^12103123223 is an apocalyptic number.

12103123223 is a deficient number, since it is larger than the sum of its proper divisors (1).

12103123223 is an equidigital number, since it uses as much as digits as its factorization.

12103123223 is an odious number, because the sum of its binary digits is odd.

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

Adding to 12103123223 its reverse (32232130121), we get a palindrome (44335253344).

The spelling of 12103123223 in words is "twelve billion, one hundred three million, one hundred twenty-three thousand, two hundred twenty-three".