541603333106021 has 2 divisors, whose sum is σ = 541603333106022. Its totient is φ = 541603333106020.

The previous prime is 541603333105997. The next prime is 541603333106243. The reversal of 541603333106021 is 120601333306145.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 330545633875396 + 211057699230625 = 18180914^2 + 14527825^2 .

It is a cyclic number.

It is not a de Polignac number, because 541603333106021 - 2³⁰ = 541602259364197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (541603333108021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270801666553010 + 270801666553011.

It is an arithmetic number, because the mean of its divisors is an integer number (270801666553011).

Almost surely, 2^{541603333106021} is an apocalyptic number.

It is an amenable number.

541603333106021 is a deficient number, since it is larger than the sum of its proper divisors (1).

541603333106021 is an equidigital number, since it uses as much as digits as its factorization.

541603333106021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 38.

The spelling of 541603333106021 in words is "five hundred forty-one trillion, six hundred three billion, three hundred thirty-three million, one hundred six thousand, twenty-one".