542560203421 has 2 divisors, whose sum is σ = 542560203422. Its totient is φ = 542560203420.

The previous prime is 542560203379. The next prime is 542560203467. The reversal of 542560203421 is 124302065245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 388571456025 + 153988747396 = 623355^2 + 392414^2 .

It is a cyclic number.

It is not a de Polignac number, because 542560203421 - 2⁷ = 542560203293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542560203491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271280101710 + 271280101711.

It is an arithmetic number, because the mean of its divisors is an integer number (271280101711).

Almost surely, 2^542560203421 is an apocalyptic number.

It is an amenable number.

542560203421 is a deficient number, since it is larger than the sum of its proper divisors (1).

542560203421 is an equidigital number, since it uses as much as digits as its factorization.

542560203421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 542560203421 its reverse (124302065245), we get a palindrome (666862268666).

The spelling of 542560203421 in words is "five hundred forty-two billion, five hundred sixty million, two hundred three thousand, four hundred twenty-one".