201330231211 has 2 divisors, whose sum is σ = 201330231212. Its totient is φ = 201330231210.

The previous prime is 201330231203. The next prime is 201330231239. The reversal of 201330231211 is 112132033102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201330231211 - 2³ = 201330231203 is a prime.

It is not a weakly prime, because it can be changed into another prime (201330231281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100665115605 + 100665115606.

It is an arithmetic number, because the mean of its divisors is an integer number (100665115606).

Almost surely, 2^201330231211 is an apocalyptic number.

201330231211 is a deficient number, since it is larger than the sum of its proper divisors (1).

201330231211 is an equidigital number, since it uses as much as digits as its factorization.

201330231211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 201330231211 its reverse (112132033102), we get a palindrome (313462264313).

The spelling of 201330231211 in words is "two hundred one billion, three hundred thirty million, two hundred thirty-one thousand, two hundred eleven".