211030311311 has 8 divisors (see below), whose sum is σ = 215698971600. Its totient is φ = 206387093952.

The previous prime is 211030311301. The next prime is 211030311347. The reversal of 211030311311 is 113113030112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 211030311311 - 2¹⁰ = 211030310287 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 211030311311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211030311301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6343961 + ... + 6377138.

It is an arithmetic number, because the mean of its divisors is an integer number (26962371450).

Almost surely, 2^211030311311 is an apocalyptic number.

211030311311 is a deficient number, since it is larger than the sum of its proper divisors (4668660289).

211030311311 is a wasteful number, since it uses less digits than its factorization.

211030311311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12721465.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 211030311311 its reverse (113113030112), we get a palindrome (324143341423).

The spelling of 211030311311 in words is "two hundred eleven billion, thirty million, three hundred eleven thousand, three hundred eleven".