12241231133 has 4 divisors (see below), whose sum is σ = 12539797788. Its totient is φ = 11942664480.

The previous prime is 12241231117. The next prime is 12241231139. The reversal of 12241231133 is 33113214221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33113214221 = 59 ⋅561240919.

It can be written as a sum of positive squares in 2 ways, for example, as 4165153444 + 8076077689 = 64538^2 + 89867^2 .

It is a cyclic number.

It is not a de Polignac number, because 12241231133 - 2⁴ = 12241231117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12241231099 and 12241231108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12241231139) 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, 149283266 + ... + 149283347.

It is an arithmetic number, because the mean of its divisors is an integer number (3134949447).

Almost surely, 2^12241231133 is an apocalyptic number.

It is an amenable number.

12241231133 is a deficient number, since it is larger than the sum of its proper divisors (298566655).

12241231133 is an equidigital number, since it uses as much as digits as its factorization.

12241231133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298566654.

The product of its digits is 864, while the sum is 23.

Adding to 12241231133 its reverse (33113214221), we get a palindrome (45354445354).

The spelling of 12241231133 in words is "twelve billion, two hundred forty-one million, two hundred thirty-one thousand, one hundred thirty-three".