27120342511 has 2 divisors, whose sum is σ = 27120342512. Its totient is φ = 27120342510.

The previous prime is 27120342481. The next prime is 27120342523. The reversal of 27120342511 is 11524302172.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27120342511 - 2⁵ = 27120342479 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27120342511.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27120346511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13560171255 + 13560171256.

It is an arithmetic number, because the mean of its divisors is an integer number (13560171256).

Almost surely, 2^27120342511 is an apocalyptic number.

27120342511 is a deficient number, since it is larger than the sum of its proper divisors (1).

27120342511 is an equidigital number, since it uses as much as digits as its factorization.

27120342511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 28.

Adding to 27120342511 its reverse (11524302172), we get a palindrome (38644644683).

The spelling of 27120342511 in words is "twenty-seven billion, one hundred twenty million, three hundred forty-two thousand, five hundred eleven".