12311131311111 has 8 divisors (see below), whose sum is σ = 16568251484544. Its totient is φ = 8130716005880.

The previous prime is 12311131311103. The next prime is 12311131311151. The reversal of 12311131311111 is 11111313111321.

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

It is a cyclic number.

It is not a de Polignac number, because 12311131311111 - 2³ = 12311131311103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311131311151) 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, 19176216675 + ... + 19176217316.

It is an arithmetic number, because the mean of its divisors is an integer number (2071031435568).

Almost surely, 2^{12311131311111} is an apocalyptic number.

12311131311111 is a deficient number, since it is larger than the sum of its proper divisors (4257120173433).

12311131311111 is a wasteful number, since it uses less digits than its factorization.

12311131311111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38352434101.

The product of its digits is 54, while the sum is 21.

Adding to 12311131311111 its reverse (11111313111321), we get a palindrome (23422444422432).

The spelling of 12311131311111 in words is "twelve trillion, three hundred eleven billion, one hundred thirty-one million, three hundred eleven thousand, one hundred eleven".