12543576371 has 2 divisors, whose sum is σ = 12543576372. Its totient is φ = 12543576370.

The previous prime is 12543576347. The next prime is 12543576403. The reversal of 12543576371 is 17367534521.

It is a weak prime.

It is an emirp because it is prime and its reverse (17367534521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12543576371 - 2⁶ = 12543576307 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (12543576301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6271788185 + 6271788186.

It is an arithmetic number, because the mean of its divisors is an integer number (6271788186).

Almost surely, 2^12543576371 is an apocalyptic number.

12543576371 is a deficient number, since it is larger than the sum of its proper divisors (1).

12543576371 is an equidigital number, since it uses as much as digits as its factorization.

12543576371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 529200, while the sum is 44.

The spelling of 12543576371 in words is "twelve billion, five hundred forty-three million, five hundred seventy-six thousand, three hundred seventy-one".