12543347041 has 2 divisors, whose sum is σ = 12543347042. Its totient is φ = 12543347040.

The previous prime is 12543347017. The next prime is 12543347051. The reversal of 12543347041 is 14074334521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12333213025 + 210134016 = 111055^2 + 14496^2 .

It is a cyclic number.

It is not a de Polignac number, because 12543347041 - 2¹⁹ = 12542822753 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12543346988 and 12543347006.

It is not a weakly prime, because it can be changed into another prime (12543347051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6271673520 + 6271673521.

It is an arithmetic number, because the mean of its divisors is an integer number (6271673521).

Almost surely, 2^12543347041 is an apocalyptic number.

It is an amenable number.

12543347041 is a deficient number, since it is larger than the sum of its proper divisors (1).

12543347041 is an equidigital number, since it uses as much as digits as its factorization.

12543347041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 34.

The spelling of 12543347041 in words is "twelve billion, five hundred forty-three million, three hundred forty-seven thousand, forty-one".