12541343453 has 4 divisors (see below), whose sum is σ = 12578558460. Its totient is φ = 12504128448.

The previous prime is 12541343449. The next prime is 12541343459. The reversal of 12541343453 is 35434314521.

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 2821946884 + 9719396569 = 53122^2 + 98587^2 .

It is a cyclic number.

It is not a de Polignac number, because 12541343453 - 2² = 12541343449 is a prime.

It is a super-2 number, since 2×12541343453² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12541343459) 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, 18606998 + ... + 18607671.

It is an arithmetic number, because the mean of its divisors is an integer number (3144639615).

Almost surely, 2^12541343453 is an apocalyptic number.

It is an amenable number.

12541343453 is a deficient number, since it is larger than the sum of its proper divisors (37215007).

12541343453 is an equidigital number, since it uses as much as digits as its factorization.

12541343453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37215006.

The product of its digits is 86400, while the sum is 35.

Adding to 12541343453 its reverse (35434314521), we get a palindrome (47975657974).

The spelling of 12541343453 in words is "twelve billion, five hundred forty-one million, three hundred forty-three thousand, four hundred fifty-three".