12123203107 has 2 divisors, whose sum is σ = 12123203108. Its totient is φ = 12123203106.

The previous prime is 12123203017. The next prime is 12123203153. The reversal of 12123203107 is 70130232121.

It is a happy number.

Together with previous prime (12123203017) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12123203107 - 2¹⁹ = 12122678819 is a prime.

It is not a weakly prime, because it can be changed into another prime (12123203507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061601553 + 6061601554.

It is an arithmetic number, because the mean of its divisors is an integer number (6061601554).

Almost surely, 2^12123203107 is an apocalyptic number.

12123203107 is a deficient number, since it is larger than the sum of its proper divisors (1).

12123203107 is an equidigital number, since it uses as much as digits as its factorization.

12123203107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 22.

Adding to 12123203107 its reverse (70130232121), we get a palindrome (82253435228).

The spelling of 12123203107 in words is "twelve billion, one hundred twenty-three million, two hundred three thousand, one hundred seven".