542433106021 has 2 divisors, whose sum is σ = 542433106022. Its totient is φ = 542433106020.

The previous prime is 542433105953. The next prime is 542433106031. The reversal of 542433106021 is 120601334245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 490225425921 + 52207680100 = 700161^2 + 228490^2 .

It is a cyclic number.

It is not a de Polignac number, because 542433106021 - 2³³ = 533843171429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542433106031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271216553010 + 271216553011.

It is an arithmetic number, because the mean of its divisors is an integer number (271216553011).

Almost surely, 2^542433106021 is an apocalyptic number.

It is an amenable number.

542433106021 is a deficient number, since it is larger than the sum of its proper divisors (1).

542433106021 is an equidigital number, since it uses as much as digits as its factorization.

542433106021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 542433106021 in words is "five hundred forty-two billion, four hundred thirty-three million, one hundred six thousand, twenty-one".