12003502543 has 2 divisors, whose sum is σ = 12003502544. Its totient is φ = 12003502542.

The previous prime is 12003502523. The next prime is 12003502561. The reversal of 12003502543 is 34520530021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12003502543 - 2⁹ = 12003502031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12003502513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6001751271 + 6001751272.

It is an arithmetic number, because the mean of its divisors is an integer number (6001751272).

Almost surely, 2^12003502543 is an apocalyptic number.

12003502543 is a deficient number, since it is larger than the sum of its proper divisors (1).

12003502543 is an equidigital number, since it uses as much as digits as its factorization.

12003502543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 25.

The spelling of 12003502543 in words is "twelve billion, three million, five hundred two thousand, five hundred forty-three".