12122313113111 has 4 divisors (see below), whose sum is σ = 12168405558672. Its totient is φ = 12076220667552.

The previous prime is 12122313113101. The next prime is 12122313113129. The reversal of 12122313113111 is 11131131322121.

12122313113111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12122313113111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122313113101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23046222386 + ... + 23046222911.

It is an arithmetic number, because the mean of its divisors is an integer number (3042101389668).

Almost surely, 2^{12122313113111} is an apocalyptic number.

12122313113111 is a deficient number, since it is larger than the sum of its proper divisors (46092445561).

12122313113111 is an equidigital number, since it uses as much as digits as its factorization.

12122313113111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46092445560.

The product of its digits is 216, while the sum is 23.

Adding to 12122313113111 its reverse (11131131322121), we get a palindrome (23253444435232).

The spelling of 12122313113111 in words is "twelve trillion, one hundred twenty-two billion, three hundred thirteen million, one hundred thirteen thousand, one hundred eleven".