201140242111 has 2 divisors, whose sum is σ = 201140242112. Its totient is φ = 201140242110.

The previous prime is 201140242109. The next prime is 201140242211. The reversal of 201140242111 is 111242041102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201140242111 - 2¹ = 201140242109 is a prime.

Together with 201140242109, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201140242211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100570121055 + 100570121056.

It is an arithmetic number, because the mean of its divisors is an integer number (100570121056).

Almost surely, 2^201140242111 is an apocalyptic number.

201140242111 is a deficient number, since it is larger than the sum of its proper divisors (1).

201140242111 is an equidigital number, since it uses as much as digits as its factorization.

201140242111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 201140242111 its reverse (111242041102), we get a palindrome (312382283213).

The spelling of 201140242111 in words is "two hundred one billion, one hundred forty million, two hundred forty-two thousand, one hundred eleven".