12111310011 has 16 divisors (see below), whose sum is σ = 17457747200. Its totient is φ = 7442510688.

The previous prime is 12111309979. The next prime is 12111310021. The reversal of 12111310011 is 11001311121.

It is not a de Polignac number, because 12111310011 - 2⁵ = 12111309979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12111310021) 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, 2869231 + ... + 2873448.

It is an arithmetic number, because the mean of its divisors is an integer number (1091109200).

Almost surely, 2^12111310011 is an apocalyptic number.

12111310011 is a deficient number, since it is larger than the sum of its proper divisors (5346437189).

12111310011 is a wasteful number, since it uses less digits than its factorization.

12111310011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5742738.

The product of its (nonzero) digits is 6, while the sum is 12.

Adding to 12111310011 its reverse (11001311121), we get a palindrome (23112621132).

The spelling of 12111310011 in words is "twelve billion, one hundred eleven million, three hundred ten thousand, eleven".