12146023717 has 2 divisors, whose sum is σ = 12146023718. Its totient is φ = 12146023716.

The previous prime is 12146023651. The next prime is 12146023759. The reversal of 12146023717 is 71732064121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12146023681 + 36 = 110209^2 + 6^2 .

It is a cyclic number.

It is not a de Polignac number, because 12146023717 - 2²³ = 12137635109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12146021717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6073011858 + 6073011859.

It is an arithmetic number, because the mean of its divisors is an integer number (6073011859).

Almost surely, 2^12146023717 is an apocalyptic number.

It is an amenable number.

12146023717 is a deficient number, since it is larger than the sum of its proper divisors (1).

12146023717 is an equidigital number, since it uses as much as digits as its factorization.

12146023717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 34.

Adding to 12146023717 its reverse (71732064121), we get a palindrome (83878087838).

The spelling of 12146023717 in words is "twelve billion, one hundred forty-six million, twenty-three thousand, seven hundred seventeen".