123112103 has 2 divisors, whose sum is σ = 123112104. Its totient is φ = 123112102.

The previous prime is 123112081. The next prime is 123112151. The reversal of 123112103 is 301211321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123112103 - 2¹⁴ = 123095719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123112183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61556051 + 61556052.

It is an arithmetic number, because the mean of its divisors is an integer number (61556052).

Almost surely, 2^123112103 is an apocalyptic number.

123112103 is a deficient number, since it is larger than the sum of its proper divisors (1).

123112103 is an equidigital number, since it uses as much as digits as its factorization.

123112103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 123112103 is about 11095.5893489260. The cubic root of 123112103 is about 497.4700240350.

Adding to 123112103 its reverse (301211321), we get a palindrome (424323424).

The spelling of 123112103 in words is "one hundred twenty-three million, one hundred twelve thousand, one hundred three".