211310310011 has 2 divisors, whose sum is σ = 211310310012. Its totient is φ = 211310310010.

The previous prime is 211310310007. The next prime is 211310310037. The reversal of 211310310011 is 110013013112.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211310310011 - 2² = 211310310007 is a prime.

It is not a weakly prime, because it can be changed into another prime (211310010011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105655155005 + 105655155006.

It is an arithmetic number, because the mean of its divisors is an integer number (105655155006).

Almost surely, 2^211310310011 is an apocalyptic number.

211310310011 is a deficient number, since it is larger than the sum of its proper divisors (1).

211310310011 is an equidigital number, since it uses as much as digits as its factorization.

211310310011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 211310310011 its reverse (110013013112), we get a palindrome (321323323123).

The spelling of 211310310011 in words is "two hundred eleven billion, three hundred ten million, three hundred ten thousand, eleven".