123030103 has 12 divisors (see below), whose sum is σ = 145295760. Its totient is φ = 102047040.

The previous prime is 123030079. The next prime is 123030133. The reversal of 123030103 is 301030321.

It is not a de Polignac number, because 123030103 - 2²⁵ = 89475671 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123030133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2418 + ... + 15871.

It is an arithmetic number, because the mean of its divisors is an integer number (12107980).

Almost surely, 2^123030103 is an apocalyptic number.

123030103 is a deficient number, since it is larger than the sum of its proper divisors (22265657).

123030103 is an equidigital number, since it uses as much as digits as its factorization.

123030103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18358 (or 18327 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 123030103 is about 11091.8935714331. The cubic root of 123030103 is about 497.3595512732.

Adding to 123030103 its reverse (301030321), we get a palindrome (424060424).

The spelling of 123030103 in words is "one hundred twenty-three million, thirty thousand, one hundred three".