201111312400127 has 2 divisors, whose sum is σ = 201111312400128. Its totient is φ = 201111312400126.

The previous prime is 201111312400001. The next prime is 201111312400151. The reversal of 201111312400127 is 721004213111102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201111312400127 - 2³² = 201107017432831 is a prime.

It is a super-2 number, since 2×201111312400127² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201111312400096 and 201111312400105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201111312400927) 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, 100555656200063 + 100555656200064.

It is an arithmetic number, because the mean of its divisors is an integer number (100555656200064).

Almost surely, 2^{201111312400127} is an apocalyptic number.

201111312400127 is a deficient number, since it is larger than the sum of its proper divisors (1).

201111312400127 is an equidigital number, since it uses as much as digits as its factorization.

201111312400127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 26.

Adding to 201111312400127 its reverse (721004213111102), we get a palindrome (922115525511229).

The spelling of 201111312400127 in words is "two hundred one trillion, one hundred eleven billion, three hundred twelve million, four hundred thousand, one hundred twenty-seven".