201321321211311 has 16 divisors (see below), whose sum is σ = 306841220784384. Its totient is φ = 115016052161664.

The previous prime is 201321321211303. The next prime is 201321321211331. The reversal of 201321321211311 is 113112123123102.

It is not a de Polignac number, because 201321321211311 - 2³ = 201321321211303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201321321211331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1029183885 + ... + 1029379478.

It is an arithmetic number, because the mean of its divisors is an integer number (19177576299024).

Almost surely, 2^{201321321211311} is an apocalyptic number.

201321321211311 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

201321321211311 is a deficient number, since it is larger than the sum of its proper divisors (105519899573073).

201321321211311 is a wasteful number, since it uses less digits than its factorization.

201321321211311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2058568030.

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 201321321211311 its reverse (113112123123102), we get a palindrome (314433444334413).

The spelling of 201321321211311 in words is "two hundred one trillion, three hundred twenty-one billion, three hundred twenty-one million, two hundred eleven thousand, three hundred eleven".