12011301103 has 4 divisors (see below), whose sum is σ = 12071659600. Its totient is φ = 11950942608.

The previous prime is 12011301077. The next prime is 12011301149. The reversal of 12011301103 is 30110311021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30110311021 = 7 ⋅4301473003.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12011301103 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 (12011301163) 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, 30178950 + ... + 30179347.

It is an arithmetic number, because the mean of its divisors is an integer number (3017914900).

Almost surely, 2^12011301103 is an apocalyptic number.

12011301103 is a deficient number, since it is larger than the sum of its proper divisors (60358497).

12011301103 is an equidigital number, since it uses as much as digits as its factorization.

12011301103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60358496.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 12011301103 its reverse (30110311021), we get a palindrome (42121612124).

The spelling of 12011301103 in words is "twelve billion, eleven million, three hundred one thousand, one hundred three".