201010112111 has 2 divisors, whose sum is σ = 201010112112. Its totient is φ = 201010112110.

The previous prime is 201010112087. The next prime is 201010112113. The reversal of 201010112111 is 111211010102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201010112111 - 2²² = 201005917807 is a prime.

Together with 201010112113, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 201010112092 and 201010112101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201010112113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100505056055 + 100505056056.

It is an arithmetic number, because the mean of its divisors is an integer number (100505056056).

Almost surely, 2^201010112111 is an apocalyptic number.

201010112111 is a deficient number, since it is larger than the sum of its proper divisors (1).

201010112111 is an equidigital number, since it uses as much as digits as its factorization.

201010112111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 201010112111 its reverse (111211010102), we get a palindrome (312221122213).

The spelling of 201010112111 in words is "two hundred one billion, ten million, one hundred twelve thousand, one hundred eleven".