201331027 has 2 divisors, whose sum is σ = 201331028. Its totient is φ = 201331026.

The previous prime is 201331003. The next prime is 201331037. The reversal of 201331027 is 720133102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201331027 - 2¹⁵ = 201298259 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201330995 and 201331013.

It is not a weakly prime, because it can be changed into another prime (201331037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100665513 + 100665514.

It is an arithmetic number, because the mean of its divisors is an integer number (100665514).

Almost surely, 2^201331027 is an apocalyptic number.

201331027 is a deficient number, since it is larger than the sum of its proper divisors (1).

201331027 is an equidigital number, since it uses as much as digits as its factorization.

201331027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 201331027 is about 14189.1164982179. The cubic root of 201331027 is about 586.0979958189.

Adding to 201331027 its reverse (720133102), we get a palindrome (921464129).

The spelling of 201331027 in words is "two hundred one million, three hundred thirty-one thousand, twenty-seven".