211312301022311 has 2 divisors, whose sum is σ = 211312301022312. Its totient is φ = 211312301022310.

The previous prime is 211312301022283. The next prime is 211312301022353. The reversal of 211312301022311 is 113220103213112.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211312301022311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211312301022611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105656150511155 + 105656150511156.

It is an arithmetic number, because the mean of its divisors is an integer number (105656150511156).

Almost surely, 2^{211312301022311} is an apocalyptic number.

211312301022311 is a deficient number, since it is larger than the sum of its proper divisors (1).

211312301022311 is an equidigital number, since it uses as much as digits as its factorization.

211312301022311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 211312301022311 its reverse (113220103213112), we get a palindrome (324532404235423).

The spelling of 211312301022311 in words is "two hundred eleven trillion, three hundred twelve billion, three hundred one million, twenty-two thousand, three hundred eleven".