13144244233 has 4 divisors (see below), whose sum is σ = 13149261828. Its totient is φ = 13139226640.

The previous prime is 13144244231. The next prime is 13144244291. The reversal of 13144244233 is 33244244131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33244244131 = 7 ⋅4749177733.

It can be written as a sum of positive squares in 2 ways, for example, as 4568002569 + 8576241664 = 67587^2 + 92608^2 .

It is a cyclic number.

It is not a de Polignac number, because 13144244233 - 2¹ = 13144244231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13144244195 and 13144244204.

It is not an unprimeable number, because it can be changed into a prime (13144244231) 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, 2504866 + ... + 2510107.

It is an arithmetic number, because the mean of its divisors is an integer number (3287315457).

Almost surely, 2^13144244233 is an apocalyptic number.

It is an amenable number.

13144244233 is a deficient number, since it is larger than the sum of its proper divisors (5017595).

13144244233 is an equidigital number, since it uses as much as digits as its factorization.

13144244233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5017594.

The product of its digits is 27648, while the sum is 31.

Adding to 13144244233 its reverse (33244244131), we get a palindrome (46388488364).

The spelling of 13144244233 in words is "thirteen billion, one hundred forty-four million, two hundred forty-four thousand, two hundred thirty-three".