111012110020111 has 4 divisors (see below), whose sum is σ = 113106678133752. Its totient is φ = 108917541906472.

The previous prime is 111012110019983. The next prime is 111012110020129. The reversal of 111012110020111 is 111020011210111.

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 111012110020111 - 2⁷ = 111012110019983 is a prime.

It is a super-2 number, since 2×111012110020111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111012110020091 and 111012110020100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111012110020181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1047284056741 + ... + 1047284056846.

It is an arithmetic number, because the mean of its divisors is an integer number (28276669533438).

Almost surely, 2^{111012110020111} is an apocalyptic number.

111012110020111 is a deficient number, since it is larger than the sum of its proper divisors (2094568113641).

111012110020111 is an equidigital number, since it uses as much as digits as its factorization.

111012110020111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2094568113640.

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

Adding to 111012110020111 its reverse (111020011210111), we get a palindrome (222032121230222).

The spelling of 111012110020111 in words is "one hundred eleven trillion, twelve billion, one hundred ten million, twenty thousand, one hundred eleven".