11321312321211 has 32 divisors (see below), whose sum is σ = 15251764207680. Its totient is φ = 7469668706304.

The previous prime is 11321312321173. The next prime is 11321312321233. The reversal of 11321312321211 is 11212321312311.

It is not a de Polignac number, because 11321312321211 - 2⁶ = 11321312321147 is a prime.

It is a super-2 number, since 2×11321312321211² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11321312321611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142207405 + ... + 142286993.

It is an arithmetic number, because the mean of its divisors is an integer number (476617631490).

Almost surely, 2^{11321312321211} is an apocalyptic number.

11321312321211 is a deficient number, since it is larger than the sum of its proper divisors (3930451886469).

11321312321211 is a wasteful number, since it uses less digits than its factorization.

11321312321211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81055.

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

Adding to 11321312321211 its reverse (11212321312311), we get a palindrome (22533633633522).

The spelling of 11321312321211 in words is "eleven trillion, three hundred twenty-one billion, three hundred twelve million, three hundred twenty-one thousand, two hundred eleven".