123130103 has 4 divisors (see below), whose sum is σ = 123164760. Its totient is φ = 123095448.

The previous prime is 123130097. The next prime is 123130129. The reversal of 123130103 is 301031321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301031321 = 11617 ⋅25913.

It is a cyclic number.

It is not a de Polignac number, because 123130103 - 2⁴ = 123130087 is a prime.

It is a super-2 number, since 2×123130103² = 30322044529581218, 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 (123130153) 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 3 ways as a sum of consecutive naturals, for example, 11300 + ... + 19337.

It is an arithmetic number, because the mean of its divisors is an integer number (30791190).

Almost surely, 2^123130103 is an apocalyptic number.

123130103 is a deficient number, since it is larger than the sum of its proper divisors (34657).

123130103 is an equidigital number, since it uses as much as digits as its factorization.

123130103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34656.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 123130103 is about 11096.4004523990. The cubic root of 123130103 is about 497.4942675871.

Adding to 123130103 its reverse (301031321), we get a palindrome (424161424).

The spelling of 123130103 in words is "one hundred twenty-three million, one hundred thirty thousand, one hundred three".