12371242657 has 2 divisors, whose sum is σ = 12371242658. Its totient is φ = 12371242656.

The previous prime is 12371242649. The next prime is 12371242693. The reversal of 12371242657 is 75624217321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11862695056 + 508547601 = 108916^2 + 22551^2 .

It is a cyclic number.

It is not a de Polignac number, because 12371242657 - 2³ = 12371242649 is a prime.

It is not a weakly prime, because it can be changed into another prime (12371242607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6185621328 + 6185621329.

It is an arithmetic number, because the mean of its divisors is an integer number (6185621329).

Almost surely, 2^12371242657 is an apocalyptic number.

It is an amenable number.

12371242657 is a deficient number, since it is larger than the sum of its proper divisors (1).

12371242657 is an equidigital number, since it uses as much as digits as its factorization.

12371242657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120, while the sum is 40.

Adding to 12371242657 its reverse (75624217321), we get a palindrome (87995459978).

The spelling of 12371242657 in words is "twelve billion, three hundred seventy-one million, two hundred forty-two thousand, six hundred fifty-seven".