12111310311 has 8 divisors (see below), whose sum is σ = 16305194880. Its totient is φ = 7995816312.

The previous prime is 12111310301. The next prime is 12111310313. The reversal of 12111310311 is 11301311121.

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

It is not a de Polignac number, because 12111310311 - 2⁹ = 12111309799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111310313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19597281 + ... + 19597898.

It is an arithmetic number, because the mean of its divisors is an integer number (2038149360).

Almost surely, 2^12111310311 is an apocalyptic number.

12111310311 is a deficient number, since it is larger than the sum of its proper divisors (4193884569).

12111310311 is a wasteful number, since it uses less digits than its factorization.

12111310311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39195285.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 12111310311 its reverse (11301311121), we get a palindrome (23412621432).

The spelling of 12111310311 in words is "twelve billion, one hundred eleven million, three hundred ten thousand, three hundred eleven".