201311222030311 has 2 divisors, whose sum is σ = 201311222030312. Its totient is φ = 201311222030310.

The previous prime is 201311222030287. The next prime is 201311222030417. The reversal of 201311222030311 is 113030222113102.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201311222030311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201311222040311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100655611015155 + 100655611015156.

It is an arithmetic number, because the mean of its divisors is an integer number (100655611015156).

Almost surely, 2^{201311222030311} is an apocalyptic number.

201311222030311 is a deficient number, since it is larger than the sum of its proper divisors (1).

201311222030311 is an equidigital number, since it uses as much as digits as its factorization.

201311222030311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 201311222030311 its reverse (113030222113102), we get a palindrome (314341444143413).

The spelling of 201311222030311 in words is "two hundred one trillion, three hundred eleven billion, two hundred twenty-two million, thirty thousand, three hundred eleven".