40143344201 has 2 divisors, whose sum is σ = 40143344202. Its totient is φ = 40143344200.

The previous prime is 40143344177. The next prime is 40143344203. The reversal of 40143344201 is 10244334104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38552929801 + 1590414400 = 196349^2 + 39880^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40143344201 is a prime.

It is a super-2 number, since 2×40143344201² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 40143344203, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (40143344203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20071672100 + 20071672101.

It is an arithmetic number, because the mean of its divisors is an integer number (20071672101).

Almost surely, 2^40143344201 is an apocalyptic number.

It is an amenable number.

40143344201 is a deficient number, since it is larger than the sum of its proper divisors (1).

40143344201 is an equidigital number, since it uses as much as digits as its factorization.

40143344201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 40143344201 its reverse (10244334104), we get a palindrome (50387678305).

The spelling of 40143344201 in words is "forty billion, one hundred forty-three million, three hundred forty-four thousand, two hundred one".