12231311322133 has 4 divisors (see below), whose sum is σ = 12262754282220. Its totient is φ = 12199868362048.

The previous prime is 12231311322127. The next prime is 12231311322149. The reversal of 12231311322133 is 33122311313221.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5244498467569 + 6986812854564 = 2290087^2 + 2643258^2 .

It is a cyclic number.

It is not a de Polignac number, because 12231311322133 - 2¹³ = 12231311313941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12231311322193) 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, 15721479460 + ... + 15721480237.

It is an arithmetic number, because the mean of its divisors is an integer number (3065688570555).

Almost surely, 2^{12231311322133} is an apocalyptic number.

It is an amenable number.

12231311322133 is a deficient number, since it is larger than the sum of its proper divisors (31442960087).

12231311322133 is an equidigital number, since it uses as much as digits as its factorization.

12231311322133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31442960086.

The product of its digits is 3888, while the sum is 28.

Adding to 12231311322133 its reverse (33122311313221), we get a palindrome (45353622635354).

The spelling of 12231311322133 in words is "twelve trillion, two hundred thirty-one billion, three hundred eleven million, three hundred twenty-two thousand, one hundred thirty-three".