443121101424401 has 2 divisors, whose sum is σ = 443121101424402. Its totient is φ = 443121101424400.

The previous prime is 443121101424341. The next prime is 443121101424431. The reversal of 443121101424401 is 104424101121344.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 236498416035025 + 206622685389376 = 15378505^2 + 14374376^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-443121101424401 is a prime.

It is a super-2 number, since 2×443121101424401² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (443121101424431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221560550712200 + 221560550712201.

It is an arithmetic number, because the mean of its divisors is an integer number (221560550712201).

Almost surely, 2^{443121101424401} is an apocalyptic number.

It is an amenable number.

443121101424401 is a deficient number, since it is larger than the sum of its proper divisors (1).

443121101424401 is an equidigital number, since it uses as much as digits as its factorization.

443121101424401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12288, while the sum is 32.

Adding to 443121101424401 its reverse (104424101121344), we get a palindrome (547545202545745).

The spelling of 443121101424401 in words is "four hundred forty-three trillion, one hundred twenty-one billion, one hundred one million, four hundred twenty-four thousand, four hundred one".