12303311111 has 32 divisors (see below), whose sum is σ = 16048222848. Its totient is φ = 9153331200.

The previous prime is 12303311101. The next prime is 12303311113. The reversal of 12303311111 is 11111330321.

12303311111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12303311111 - 2²⁶ = 12236202247 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 12303311111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12303311113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2009591 + ... + 2015703.

It is an arithmetic number, because the mean of its divisors is an integer number (501506964).

Almost surely, 2^12303311111 is an apocalyptic number.

12303311111 is a deficient number, since it is larger than the sum of its proper divisors (3744911737).

12303311111 is a wasteful number, since it uses less digits than its factorization.

12303311111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7451.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 12303311111 its reverse (11111330321), we get a palindrome (23414641432).

The spelling of 12303311111 in words is "twelve billion, three hundred three million, three hundred eleven thousand, one hundred eleven".