201324330191 has 2 divisors, whose sum is σ = 201324330192. Its totient is φ = 201324330190.

The previous prime is 201324330187. The next prime is 201324330253. The reversal of 201324330191 is 191033423102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201324330191 - 2² = 201324330187 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201324330791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100662165095 + 100662165096.

It is an arithmetic number, because the mean of its divisors is an integer number (100662165096).

Almost surely, 2^201324330191 is an apocalyptic number.

201324330191 is a deficient number, since it is larger than the sum of its proper divisors (1).

201324330191 is an equidigital number, since it uses as much as digits as its factorization.

201324330191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

Adding to 201324330191 its reverse (191033423102), we get a palindrome (392357753293).

The spelling of 201324330191 in words is "two hundred one billion, three hundred twenty-four million, three hundred thirty thousand, one hundred ninety-one".