12043402571 has 2 divisors, whose sum is σ = 12043402572. Its totient is φ = 12043402570.

The previous prime is 12043402549. The next prime is 12043402621. The reversal of 12043402571 is 17520434021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12043402571 - 2¹⁸ = 12043140427 is a prime.

It is not a weakly prime, because it can be changed into another prime (12043402171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6021701285 + 6021701286.

It is an arithmetic number, because the mean of its divisors is an integer number (6021701286).

Almost surely, 2^12043402571 is an apocalyptic number.

12043402571 is a deficient number, since it is larger than the sum of its proper divisors (1).

12043402571 is an equidigital number, since it uses as much as digits as its factorization.

12043402571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 29.

Adding to 12043402571 its reverse (17520434021), we get a palindrome (29563836592).

The spelling of 12043402571 in words is "twelve billion, forty-three million, four hundred two thousand, five hundred seventy-one".