111001112020111 has 4 divisors (see below), whose sum is σ = 111001493367000. Its totient is φ = 111000730673224.

The previous prime is 111001112020103. The next prime is 111001112020159. The reversal of 111001112020111 is 111020211100111.

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

It is a cyclic number.

It is not a de Polignac number, because 111001112020111 - 2³ = 111001112020103 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111001112020091 and 111001112020100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111001112020181) 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, 190236496 + ... + 190819093.

It is an arithmetic number, because the mean of its divisors is an integer number (27750373341750).

Almost surely, 2^{111001112020111} is an apocalyptic number.

111001112020111 is a deficient number, since it is larger than the sum of its proper divisors (381346889).

111001112020111 is an equidigital number, since it uses as much as digits as its factorization.

111001112020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381346888.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 111001112020111 its reverse (111020211100111), we get a palindrome (222021323120222).

The spelling of 111001112020111 in words is "one hundred eleven trillion, one billion, one hundred twelve million, twenty thousand, one hundred eleven".