12132032161 has 2 divisors, whose sum is σ = 12132032162. Its totient is φ = 12132032160.

The previous prime is 12132032149. The next prime is 12132032177. The reversal of 12132032161 is 16123023121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8532032161 + 3600000000 = 92369^2 + 60000^2 .

It is an emirp because it is prime and its reverse (16123023121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12132032161 - 2³¹ = 9984548513 is a prime.

It is not a weakly prime, because it can be changed into another prime (12132032191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6066016080 + 6066016081.

It is an arithmetic number, because the mean of its divisors is an integer number (6066016081).

Almost surely, 2^12132032161 is an apocalyptic number.

It is an amenable number.

12132032161 is a deficient number, since it is larger than the sum of its proper divisors (1).

12132032161 is an equidigital number, since it uses as much as digits as its factorization.

12132032161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 12132032161 its reverse (16123023121), we get a palindrome (28255055282).

The spelling of 12132032161 in words is "twelve billion, one hundred thirty-two million, thirty-two thousand, one hundred sixty-one".