201011111110111 has 2 divisors, whose sum is σ = 201011111110112. Its totient is φ = 201011111110110.

The previous prime is 201011111110093. The next prime is 201011111110217. The reversal of 201011111110111 is 111011111110102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201011111110111 - 2⁵ = 201011111110079 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201011111110091 and 201011111110100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201011111114111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100505555555055 + 100505555555056.

It is an arithmetic number, because the mean of its divisors is an integer number (100505555555056).

Almost surely, 2^{201011111110111} is an apocalyptic number.

201011111110111 is a deficient number, since it is larger than the sum of its proper divisors (1).

201011111110111 is an equidigital number, since it uses as much as digits as its factorization.

201011111110111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2, while the sum is 13.

Adding to 201011111110111 its reverse (111011111110102), we get a palindrome (312022222220213).

Subtracting from 201011111110111 its reverse (111011111110102), we obtain a palindrome (90000000000009).

The spelling of 201011111110111 in words is "two hundred one trillion, eleven billion, one hundred eleven million, one hundred ten thousand, one hundred eleven".