201112112011 has 2 divisors, whose sum is σ = 201112112012. Its totient is φ = 201112112010.

The previous prime is 201112111979. The next prime is 201112112051. The reversal of 201112112011 is 110211211102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201112112011 - 2⁵ = 201112111979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201112111982 and 201112112000.

It is not a weakly prime, because it can be changed into another prime (201112112051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100556056005 + 100556056006.

It is an arithmetic number, because the mean of its divisors is an integer number (100556056006).

Almost surely, 2^201112112011 is an apocalyptic number.

201112112011 is a deficient number, since it is larger than the sum of its proper divisors (1).

201112112011 is an equidigital number, since it uses as much as digits as its factorization.

201112112011 is an evil number, because the sum of its binary digits is even.

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

Adding to 201112112011 its reverse (110211211102), we get a palindrome (311323323113).

Subtracting from 201112112011 its reverse (110211211102), we obtain a palindrome (90900900909).

The spelling of 201112112011 in words is "two hundred one billion, one hundred twelve million, one hundred twelve thousand, eleven".