12011112120103 has 4 divisors (see below), whose sum is σ = 12019517378440. Its totient is φ = 12002706861768.

The previous prime is 12011112120083. The next prime is 12011112120149. The reversal of 12011112120103 is 30102121111021.

It is a happy number.

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 12011112120103 - 2²⁵ = 12011078565671 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 (12011112129103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4202627025 + ... + 4202629882.

It is an arithmetic number, because the mean of its divisors is an integer number (3004879344610).

Almost surely, 2^{12011112120103} is an apocalyptic number.

12011112120103 is a deficient number, since it is larger than the sum of its proper divisors (8405258337).

12011112120103 is an equidigital number, since it uses as much as digits as its factorization.

12011112120103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8405258336.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 12011112120103 its reverse (30102121111021), we get a palindrome (42113233231124).

The spelling of 12011112120103 in words is "twelve trillion, eleven billion, one hundred twelve million, one hundred twenty thousand, one hundred three".