27311101 has 2 divisors, whose sum is σ = 27311102. Its totient is φ = 27311100.

The previous prime is 27311099. The next prime is 27311117. The reversal of 27311101 is 10111372.

It is an a-pointer prime, because the next prime (27311117) can be obtained adding 27311101 to its sum of digits (16).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27311076 + 25 = 5226^2 + 5^2 .

It is a cyclic number.

It is not a de Polignac number, because 27311101 - 2¹ = 27311099 is a prime.

Together with 27311099, 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 (27311131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13655550 + 13655551.

It is an arithmetic number, because the mean of its divisors is an integer number (13655551).

Almost surely, 2^27311101 is an apocalyptic number.

It is an amenable number.

27311101 is a deficient number, since it is larger than the sum of its proper divisors (1).

27311101 is an equidigital number, since it uses as much as digits as its factorization.

27311101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42, while the sum is 16.

The square root of 27311101 is about 5226.0023918862. The cubic root of 27311101 is about 301.1478286231.

Adding to 27311101 its reverse (10111372), we get a palindrome (37422473).

The spelling of 27311101 in words is "twenty-seven million, three hundred eleven thousand, one hundred one".