211010110311311 has 4 divisors (see below), whose sum is σ = 214469292447624. Its totient is φ = 207550928175000.

The previous prime is 211010110311239. The next prime is 211010110311337. The reversal of 211010110311311 is 113113011010112.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211010110311311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211010110311311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211010112311311) 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 in 3 ways as a sum of consecutive naturals, for example, 1729591068065 + ... + 1729591068186.

It is an arithmetic number, because the mean of its divisors is an integer number (53617323111906).

Almost surely, 2^{211010110311311} is an apocalyptic number.

211010110311311 is a deficient number, since it is larger than the sum of its proper divisors (3459182136313).

211010110311311 is an equidigital number, since it uses as much as digits as its factorization.

211010110311311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3459182136312.

The product of its (nonzero) digits is 18, while the sum is 17.

Adding to 211010110311311 its reverse (113113011010112), we get a palindrome (324123121321423).

The spelling of 211010110311311 in words is "two hundred eleven trillion, ten billion, one hundred ten million, three hundred eleven thousand, three hundred eleven".