12013571 has 2 divisors, whose sum is σ = 12013572. Its totient is φ = 12013570.

The previous prime is 12013553. The next prime is 12013579. The reversal of 12013571 is 17531021.

It is a strong prime.

It is an emirp because it is prime and its reverse (17531021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12013571 is a prime.

It is not a weakly prime, because it can be changed into another prime (12013579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6006785 + 6006786.

It is an arithmetic number, because the mean of its divisors is an integer number (6006786).

Almost surely, 2^12013571 is an apocalyptic number.

12013571 is a deficient number, since it is larger than the sum of its proper divisors (1).

12013571 is an equidigital number, since it uses as much as digits as its factorization.

12013571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 12013571 is about 3466.0598667651. The cubic root of 12013571 is about 229.0291210908.

Adding to 12013571 its reverse (17531021), we get a palindrome (29544592).

The spelling of 12013571 in words is "twelve million, thirteen thousand, five hundred seventy-one".