201211311311 has 8 divisors (see below), whose sum is σ = 202805264784. Its totient is φ = 199619173440.

The previous prime is 201211311281. The next prime is 201211311317. The reversal of 201211311311 is 113113112102.

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 201211311311 - 2¹⁸ = 201211049167 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 201211311311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201211311317) 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, 230945 + ... + 675098.

It is an arithmetic number, because the mean of its divisors is an integer number (25350658098).

Almost surely, 2^201211311311 is an apocalyptic number.

201211311311 is a deficient number, since it is larger than the sum of its proper divisors (1593953473).

201211311311 is a wasteful number, since it uses less digits than its factorization.

201211311311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907801.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 201211311311 its reverse (113113112102), we get a palindrome (314324423413).

The spelling of 201211311311 in words is "two hundred one billion, two hundred eleven million, three hundred eleven thousand, three hundred eleven".