12011212011103 has 8 divisors (see below), whose sum is σ = 12146248553040. Its totient is φ = 11876177227200.

The previous prime is 12011212011091. The next prime is 12011212011173. The reversal of 12011212011103 is 30111021211021.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12011212011103 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 (12011212011173) 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 7 ways as a sum of consecutive naturals, for example, 17306328 + ... + 17986978.

It is an arithmetic number, because the mean of its divisors is an integer number (1518281069130).

Almost surely, 2^{12011212011103} is an apocalyptic number.

12011212011103 is a deficient number, since it is larger than the sum of its proper divisors (135036541937).

12011212011103 is an equidigital number, since it uses as much as digits as its factorization.

12011212011103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879017.

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

Adding to 12011212011103 its reverse (30111021211021), we get a palindrome (42122233222124).

The spelling of 12011212011103 in words is "twelve trillion, eleven billion, two hundred twelve million, eleven thousand, one hundred three".