12653143441 has 4 divisors (see below), whose sum is σ = 12860572084. Its totient is φ = 12445714800.

The previous prime is 12653143417. The next prime is 12653143471. The reversal of 12653143441 is 14434135621.

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 5579492416 + 7073651025 = 74696^2 + 84105^2 .

It is a cyclic number.

It is not a de Polignac number, because 12653143441 - 2⁵ = 12653143409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12653143397 and 12653143406.

It is not an unprimeable number, because it can be changed into a prime (12653143471) 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, 103714230 + ... + 103714351.

It is an arithmetic number, because the mean of its divisors is an integer number (3215143021).

Almost surely, 2^12653143441 is an apocalyptic number.

It is an amenable number.

12653143441 is a deficient number, since it is larger than the sum of its proper divisors (207428643).

12653143441 is an equidigital number, since it uses as much as digits as its factorization.

12653143441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207428642.

The product of its digits is 34560, while the sum is 34.

The spelling of 12653143441 in words is "twelve billion, six hundred fifty-three million, one hundred forty-three thousand, four hundred forty-one".