201142127 has 2 divisors, whose sum is σ = 201142128. Its totient is φ = 201142126.

The previous prime is 201142099. The next prime is 201142129. The reversal of 201142127 is 721241102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201142127 - 2⁶ = 201142063 is a prime.

Together with 201142129, 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 = 201142099 and 201142108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201142129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100571063 + 100571064.

It is an arithmetic number, because the mean of its divisors is an integer number (100571064).

Almost surely, 2^201142127 is an apocalyptic number.

201142127 is a deficient number, since it is larger than the sum of its proper divisors (1).

201142127 is an equidigital number, since it uses as much as digits as its factorization.

201142127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 201142127 is about 14182.4584258160. The cubic root of 201142127 is about 585.9146351829.

Adding to 201142127 its reverse (721241102), we get a palindrome (922383229).

The spelling of 201142127 in words is "two hundred one million, one hundred forty-two thousand, one hundred twenty-seven".