12012134401 has 2 divisors, whose sum is σ = 12012134402. Its totient is φ = 12012134400.

The previous prime is 12012134383. The next prime is 12012134437. The reversal of 12012134401 is 10443121021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12011940801 + 193600 = 109599^2 + 440^2 .

It is an emirp because it is prime and its reverse (10443121021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12012134401 - 2¹³ = 12012126209 is a prime.

It is not a weakly prime, because it can be changed into another prime (12012134801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6006067200 + 6006067201.

It is an arithmetic number, because the mean of its divisors is an integer number (6006067201).

Almost surely, 2^12012134401 is an apocalyptic number.

It is an amenable number.

12012134401 is a deficient number, since it is larger than the sum of its proper divisors (1).

12012134401 is an equidigital number, since it uses as much as digits as its factorization.

12012134401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12012134401 its reverse (10443121021), we get a palindrome (22455255422).

The spelling of 12012134401 in words is "twelve billion, twelve million, one hundred thirty-four thousand, four hundred one".