111020112020011 has 4 divisors (see below), whose sum is σ = 111063837943000. Its totient is φ = 110976386097024.

The previous prime is 111020112019981. The next prime is 111020112020039. The reversal of 111020112020011 is 110020211020111.

It is a happy number.

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 111020112020011 - 2²⁹ = 111019575149099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111020112019973 and 111020112020000.

It is not an unprimeable number, because it can be changed into a prime (111020112024011) 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, 21862957686 + ... + 21862962763.

It is an arithmetic number, because the mean of its divisors is an integer number (27765959485750).

Almost surely, 2^{111020112020011} is an apocalyptic number.

111020112020011 is a deficient number, since it is larger than the sum of its proper divisors (43725922989).

111020112020011 is an equidigital number, since it uses as much as digits as its factorization.

111020112020011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43725922988.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111020112020011 its reverse (110020211020111), we get a palindrome (221040323040122).

The spelling of 111020112020011 in words is "one hundred eleven trillion, twenty billion, one hundred twelve million, twenty thousand, eleven".