12103030123 has 8 divisors (see below), whose sum is σ = 12807127296. Its totient is φ = 11413756200.

The previous prime is 12103030073. The next prime is 12103030171. The reversal of 12103030123 is 32103030121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12103030123 - 2¹⁷ = 12102899051 is a prime.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12103030097 and 12103030106.

It is not an unprimeable number, because it can be changed into a prime (12103033123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3704133 + ... + 3707398.

It is an arithmetic number, because the mean of its divisors is an integer number (1600890912).

Almost surely, 2^12103030123 is an apocalyptic number.

12103030123 is a deficient number, since it is larger than the sum of its proper divisors (704097173).

12103030123 is an equidigital number, since it uses as much as digits as its factorization.

12103030123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7411625.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 12103030123 its reverse (32103030121), we get a palindrome (44206060244).

The spelling of 12103030123 in words is "twelve billion, one hundred three million, thirty thousand, one hundred twenty-three".