12123110023103 has 2 divisors, whose sum is σ = 12123110023104. Its totient is φ = 12123110023102.

The previous prime is 12123110023049. The next prime is 12123110023109. The reversal of 12123110023103 is 30132001132121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12123110023103 - 2²⁶ = 12123042914239 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12123110023109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061555011551 + 6061555011552.

It is an arithmetic number, because the mean of its divisors is an integer number (6061555011552).

Almost surely, 2^{12123110023103} is an apocalyptic number.

12123110023103 is a deficient number, since it is larger than the sum of its proper divisors (1).

12123110023103 is an equidigital number, since it uses as much as digits as its factorization.

12123110023103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 12123110023103 its reverse (30132001132121), we get a palindrome (42255111155224).

The spelling of 12123110023103 in words is "twelve trillion, one hundred twenty-three billion, one hundred ten million, twenty-three thousand, one hundred three".