123100103 has 12 divisors (see below), whose sum is σ = 143380080. Its totient is φ = 105380352.

The previous prime is 123100093. The next prime is 123100127. The reversal of 123100103 is 301001321.

It is not a de Polignac number, because 123100103 - 2¹⁰ = 123099079 is a prime.

It is a super-2 number, since 2×123100103² = 30307270717221218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123100303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68150 + ... + 69932.

It is an arithmetic number, because the mean of its divisors is an integer number (11948340).

Almost surely, 2^123100103 is an apocalyptic number.

123100103 is a deficient number, since it is larger than the sum of its proper divisors (20279977).

123100103 is a wasteful number, since it uses less digits than its factorization.

123100103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3206 (or 3199 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 123100103 is about 11095.0485803353. The cubic root of 123100103 is about 497.4538603541.

Adding to 123100103 its reverse (301001321), we get a palindrome (424101424).

The spelling of 123100103 in words is "one hundred twenty-three million, one hundred thousand, one hundred three".