111312230211111 has 16 divisors (see below), whose sum is σ = 149946888812000. Its totient is φ = 73442867816448.

The previous prime is 111312230211107. The next prime is 111312230211157. The reversal of 111312230211111 is 111112032213111.

It is not a de Polignac number, because 111312230211111 - 2² = 111312230211107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111312230211101) 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, 124985715 + ... + 125873163.

It is an arithmetic number, because the mean of its divisors is an integer number (9371680550750).

Almost surely, 2^{111312230211111} is an apocalyptic number.

111312230211111 is a deficient number, since it is larger than the sum of its proper divisors (38634658600889).

111312230211111 is an equidigital number, since it uses as much as digits as its factorization.

111312230211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318578.

The product of its (nonzero) digits is 72, while the sum is 21.

Adding to 111312230211111 its reverse (111112032213111), we get a palindrome (222424262424222).

The spelling of 111312230211111 in words is "one hundred eleven trillion, three hundred twelve billion, two hundred thirty million, two hundred eleven thousand, one hundred eleven".