111112031213111 has 4 divisors (see below), whose sum is σ = 111144061205400. Its totient is φ = 111080001220824.

The previous prime is 111112031213093. The next prime is 111112031213129. The reversal of 111112031213111 is 111312130211111.

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

It is an interprime number because it is at equal distance from previous prime (111112031213093) and next prime (111112031213129).

It is a cyclic number.

It is not a de Polignac number, because 111112031213111 - 2⁶ = 111112031213047 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 (111112031213311) 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, 16014990941 + ... + 16014997878.

It is an arithmetic number, because the mean of its divisors is an integer number (27786015301350).

Almost surely, 2^{111112031213111} is an apocalyptic number.

111112031213111 is a deficient number, since it is larger than the sum of its proper divisors (32029992289).

111112031213111 is an equidigital number, since it uses as much as digits as its factorization.

111112031213111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32029992288.

The product of its (nonzero) digits is 36, while the sum is 20.

Adding to 111112031213111 its reverse (111312130211111), we get a palindrome (222424161424222).

The spelling of 111112031213111 in words is "one hundred eleven trillion, one hundred twelve billion, thirty-one million, two hundred thirteen thousand, one hundred eleven".