12011012311103 has 16 divisors (see below), whose sum is σ = 13299680822400. Its totient is φ = 10776460696320.

The previous prime is 12011012311073. The next prime is 12011012311231. The reversal of 12011012311103 is 30111321011021.

12011012311103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12011012311103 - 2²² = 12011008116799 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 (12011012311003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41742743 + ... + 42029496.

It is an arithmetic number, because the mean of its divisors is an integer number (831230051400).

Almost surely, 2^{12011012311103} is an apocalyptic number.

12011012311103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12011012311103 is a deficient number, since it is larger than the sum of its proper divisors (1288668511297).

12011012311103 is a wasteful number, since it uses less digits than its factorization.

12011012311103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83772562.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 12011012311103 its reverse (30111321011021), we get a palindrome (42122333322124).

The spelling of 12011012311103 in words is "twelve trillion, eleven billion, twelve million, three hundred eleven thousand, one hundred three".