4243440201001 has 2 divisors, whose sum is σ = 4243440201002. Its totient is φ = 4243440201000.

The previous prime is 4243440200977. The next prime is 4243440201043. The reversal of 4243440201001 is 1001020443424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3600035685376 + 643404515625 = 1897376^2 + 802125^2 .

It is a cyclic number.

It is not a de Polignac number, because 4243440201001 - 2⁵ = 4243440200969 is a prime.

It is not a weakly prime, because it can be changed into another prime (4243440201071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2121720100500 + 2121720100501.

It is an arithmetic number, because the mean of its divisors is an integer number (2121720100501).

Almost surely, 2^{4243440201001} is an apocalyptic number.

It is an amenable number.

4243440201001 is a deficient number, since it is larger than the sum of its proper divisors (1).

4243440201001 is an equidigital number, since it uses as much as digits as its factorization.

4243440201001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 4243440201001 its reverse (1001020443424), we get a palindrome (5244460644425).

The spelling of 4243440201001 in words is "four trillion, two hundred forty-three billion, four hundred forty million, two hundred one thousand, one".