12571181393 has 2 divisors, whose sum is σ = 12571181394. Its totient is φ = 12571181392.

The previous prime is 12571181341. The next prime is 12571181477. The reversal of 12571181393 is 39318117521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8894941969 + 3676239424 = 94313^2 + 60632^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12571181393 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12571181393.

It is not a weakly prime, because it can be changed into another prime (12571181593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6285590696 + 6285590697.

It is an arithmetic number, because the mean of its divisors is an integer number (6285590697).

Almost surely, 2^12571181393 is an apocalyptic number.

It is an amenable number.

12571181393 is a deficient number, since it is larger than the sum of its proper divisors (1).

12571181393 is an equidigital number, since it uses as much as digits as its factorization.

12571181393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 41.

The spelling of 12571181393 in words is "twelve billion, five hundred seventy-one million, one hundred eighty-one thousand, three hundred ninety-three".