12541235543 has 8 divisors (see below), whose sum is σ = 12773409600. Its totient is φ = 12310897248.

The previous prime is 12541235537. The next prime is 12541235561. The reversal of 12541235543 is 34553214521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12541235543 - 2⁶ = 12541235479 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 (12541235143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 445148 + ... + 472481.

It is an arithmetic number, because the mean of its divisors is an integer number (1596676200).

Almost surely, 2^12541235543 is an apocalyptic number.

12541235543 is a deficient number, since it is larger than the sum of its proper divisors (232174057).

12541235543 is an equidigital number, since it uses as much as digits as its factorization.

12541235543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917881.

The product of its digits is 72000, while the sum is 35.

The spelling of 12541235543 in words is "twelve billion, five hundred forty-one million, two hundred thirty-five thousand, five hundred forty-three".