111120211011 has 4 divisors (see below), whose sum is σ = 148160281352. Its totient is φ = 74080140672.

The previous prime is 111120211003. The next prime is 111120211019. The reversal of 111120211011 is 110112021111.

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 (111120211003) and next prime (111120211019).

It is not a de Polignac number, because 111120211011 - 2³ = 111120211003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111120211019) 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, 18520035166 + ... + 18520035171.

It is an arithmetic number, because the mean of its divisors is an integer number (37040070338).

Almost surely, 2^111120211011 is an apocalyptic number.

111120211011 is a deficient number, since it is larger than the sum of its proper divisors (37040070341).

111120211011 is an equidigital number, since it uses as much as digits as its factorization.

111120211011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37040070340.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 111120211011 its reverse (110112021111), we get a palindrome (221232232122).

The spelling of 111120211011 in words is "one hundred eleven billion, one hundred twenty million, two hundred eleven thousand, eleven".