12118030103 has 4 divisors (see below), whose sum is σ = 12535893240. Its totient is φ = 11700166968.

The previous prime is 12118030087. The next prime is 12118030123. The reversal of 12118030103 is 30103081121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12118030103 - 2⁴ = 12118030087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12118030123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208931525 + ... + 208931582.

It is an arithmetic number, because the mean of its divisors is an integer number (3133973310).

Almost surely, 2^12118030103 is an apocalyptic number.

12118030103 is a deficient number, since it is larger than the sum of its proper divisors (417863137).

12118030103 is an equidigital number, since it uses as much as digits as its factorization.

12118030103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417863136.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 12118030103 in words is "twelve billion, one hundred eighteen million, thirty thousand, one hundred three".