11212324312231 has 4 divisors (see below), whose sum is σ = 12814084928272. Its totient is φ = 9610563696192.

The previous prime is 11212324312193. The next prime is 11212324312247. The reversal of 11212324312231 is 13221342321211.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 11212324312231 - 2⁹ = 11212324311719 is a prime.

It is a super-2 number, since 2×11212324312231² (a number of 27 digits) contains 22 as substring.

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 11212324312231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212324012231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 800880308010 + ... + 800880308023.

It is an arithmetic number, because the mean of its divisors is an integer number (3203521232068).

Almost surely, 2^{11212324312231} is an apocalyptic number.

11212324312231 is a deficient number, since it is larger than the sum of its proper divisors (1601760616041).

11212324312231 is an equidigital number, since it uses as much as digits as its factorization.

11212324312231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601760616040.

The product of its digits is 3456, while the sum is 28.

Adding to 11212324312231 its reverse (13221342321211), we get a palindrome (24433666633442).

The spelling of 11212324312231 in words is "eleven trillion, two hundred twelve billion, three hundred twenty-four million, three hundred twelve thousand, two hundred thirty-one".