12623042161 has 2 divisors, whose sum is σ = 12623042162. Its totient is φ = 12623042160.

The previous prime is 12623042143. The next prime is 12623042189. The reversal of 12623042161 is 16124032621.

It is an a-pointer prime, because the next prime (12623042189) can be obtained adding 12623042161 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12174915600 + 448126561 = 110340^2 + 21169^2 .

It is a cyclic number.

It is not a de Polignac number, because 12623042161 - 2⁵ = 12623042129 is a prime.

It is not a weakly prime, because it can be changed into another prime (12623042101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6311521080 + 6311521081.

It is an arithmetic number, because the mean of its divisors is an integer number (6311521081).

Almost surely, 2^12623042161 is an apocalyptic number.

It is an amenable number.

12623042161 is a deficient number, since it is larger than the sum of its proper divisors (1).

12623042161 is an equidigital number, since it uses as much as digits as its factorization.

12623042161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 12623042161 its reverse (16124032621), we get a palindrome (28747074782).

The spelling of 12623042161 in words is "twelve billion, six hundred twenty-three million, forty-two thousand, one hundred sixty-one".