27331231201 has 2 divisors, whose sum is σ = 27331231202. Its totient is φ = 27331231200.

The previous prime is 27331231199. The next prime is 27331231219. The reversal of 27331231201 is 10213213372.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26419251600 + 911979601 = 162540^2 + 30199^2 .

It is a cyclic number.

It is not a de Polignac number, because 27331231201 - 2¹ = 27331231199 is a prime.

Together with 27331231199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (27331231261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13665615600 + 13665615601.

It is an arithmetic number, because the mean of its divisors is an integer number (13665615601).

Almost surely, 2^27331231201 is an apocalyptic number.

It is an amenable number.

27331231201 is a deficient number, since it is larger than the sum of its proper divisors (1).

27331231201 is an equidigital number, since it uses as much as digits as its factorization.

27331231201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 25.

Adding to 27331231201 its reverse (10213213372), we get a palindrome (37544444573).

The spelling of 27331231201 in words is "twenty-seven billion, three hundred thirty-one million, two hundred thirty-one thousand, two hundred one".