201440111 has 2 divisors, whose sum is σ = 201440112. Its totient is φ = 201440110.

The previous prime is 201440081. The next prime is 201440131. The reversal of 201440111 is 111044102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201440111 - 2⁶ = 201440047 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201440131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100720055 + 100720056.

It is an arithmetic number, because the mean of its divisors is an integer number (100720056).

Almost surely, 2^201440111 is an apocalyptic number.

201440111 is a deficient number, since it is larger than the sum of its proper divisors (1).

201440111 is an equidigital number, since it uses as much as digits as its factorization.

201440111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 201440111 is about 14192.9599097581. The cubic root of 201440111 is about 586.2038287704.

Adding to 201440111 its reverse (111044102), we get a palindrome (312484213).

The spelling of 201440111 in words is "two hundred one million, four hundred forty thousand, one hundred eleven".