201443557241 has 2 divisors, whose sum is σ = 201443557242. Its totient is φ = 201443557240.

The previous prime is 201443557207. The next prime is 201443557297. The reversal of 201443557241 is 142755344102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 161299427641 + 40144129600 = 401621^2 + 200360^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201443557241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201443557195 and 201443557204.

It is not a weakly prime, because it can be changed into another prime (201443757241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100721778620 + 100721778621.

It is an arithmetic number, because the mean of its divisors is an integer number (100721778621).

Almost surely, 2^201443557241 is an apocalyptic number.

It is an amenable number.

201443557241 is a deficient number, since it is larger than the sum of its proper divisors (1).

201443557241 is an equidigital number, since it uses as much as digits as its factorization.

201443557241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 134400, while the sum is 38.

The spelling of 201443557241 in words is "two hundred one billion, four hundred forty-three million, five hundred fifty-seven thousand, two hundred forty-one".