40203443552201 has 2 divisors, whose sum is σ = 40203443552202. Its totient is φ = 40203443552200.

The previous prime is 40203443552117. The next prime is 40203443552219. The reversal of 40203443552201 is 10225534430204.

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., 30655312652176 + 9548130900025 = 5536724^2 + 3090005^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40203443552201 is a prime.

It is a super-2 number, since 2×40203443552201² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40203443512201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20101721776100 + 20101721776101.

It is an arithmetic number, because the mean of its divisors is an integer number (20101721776101).

Almost surely, 2^{40203443552201} is an apocalyptic number.

It is an amenable number.

40203443552201 is a deficient number, since it is larger than the sum of its proper divisors (1).

40203443552201 is an equidigital number, since it uses as much as digits as its factorization.

40203443552201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 40203443552201 its reverse (10225534430204), we get a palindrome (50428977982405).

The spelling of 40203443552201 in words is "forty trillion, two hundred three billion, four hundred forty-three million, five hundred fifty-two thousand, two hundred one".