27312011 has 2 divisors, whose sum is σ = 27312012. Its totient is φ = 27312010.

The previous prime is 27312007. The next prime is 27312083. The reversal of 27312011 is 11021372.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27312011 - 2² = 27312007 is a prime.

It is not a weakly prime, because it can be changed into another prime (27312091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13656005 + 13656006.

It is an arithmetic number, because the mean of its divisors is an integer number (13656006).

Almost surely, 2^27312011 is an apocalyptic number.

27312011 is a deficient number, since it is larger than the sum of its proper divisors (1).

27312011 is an equidigital number, since it uses as much as digits as its factorization.

27312011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 27312011 is about 5226.0894557977. The cubic root of 27312011 is about 301.1511733128.

Adding to 27312011 its reverse (11021372), we get a palindrome (38333383).

The spelling of 27312011 in words is "twenty-seven million, three hundred twelve thousand, eleven".