111211320211111 has 8 divisors (see below), whose sum is σ = 111233337426000. Its totient is φ = 111189303697920.

The previous prime is 111211320211081. The next prime is 111211320211163. The reversal of 111211320211111 is 111112023112111.

It is a happy number.

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 111211320211111 - 2⁷ = 111211320210983 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 (111211320271111) 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, 409982535 + ... + 410253703.

It is an arithmetic number, because the mean of its divisors is an integer number (13904167178250).

Almost surely, 2^{111211320211111} is an apocalyptic number.

111211320211111 is a deficient number, since it is larger than the sum of its proper divisors (22017214889).

111211320211111 is an equidigital number, since it uses as much as digits as its factorization.

111211320211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350849.

The product of its (nonzero) digits is 24, while the sum is 19.

Adding to 111211320211111 its reverse (111112023112111), we get a palindrome (222323343323222).

The spelling of 111211320211111 in words is "one hundred eleven trillion, two hundred eleven billion, three hundred twenty million, two hundred eleven thousand, one hundred eleven".