12423632401 has 2 divisors, whose sum is σ = 12423632402. Its totient is φ = 12423632400.

The previous prime is 12423632387. The next prime is 12423632407. The reversal of 12423632401 is 10423632421.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10760950225 + 1662682176 = 103735^2 + 40776^2 .

It is an emirp because it is prime and its reverse (10423632421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12423632401 - 2²¹ = 12421535249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12423632401.

It is not a weakly prime, because it can be changed into another prime (12423632407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6211816200 + 6211816201.

It is an arithmetic number, because the mean of its divisors is an integer number (6211816201).

Almost surely, 2^12423632401 is an apocalyptic number.

It is an amenable number.

12423632401 is a deficient number, since it is larger than the sum of its proper divisors (1).

12423632401 is an equidigital number, since it uses as much as digits as its factorization.

12423632401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 28.

The spelling of 12423632401 in words is "twelve billion, four hundred twenty-three million, six hundred thirty-two thousand, four hundred one".