531301420073 has 2 divisors, whose sum is σ = 531301420074. Its totient is φ = 531301420072.

The previous prime is 531301420063. The next prime is 531301420163. The reversal of 531301420073 is 370024103135.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 529820940544 + 1480479529 = 727888^2 + 38477^2 .

It is a cyclic number.

It is not a de Polignac number, because 531301420073 - 2⁴ = 531301420057 is a prime.

It is not a weakly prime, because it can be changed into another prime (531301420063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265650710036 + 265650710037.

It is an arithmetic number, because the mean of its divisors is an integer number (265650710037).

Almost surely, 2^531301420073 is an apocalyptic number.

It is an amenable number.

531301420073 is a deficient number, since it is larger than the sum of its proper divisors (1).

531301420073 is an equidigital number, since it uses as much as digits as its factorization.

531301420073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 29.

The spelling of 531301420073 in words is "five hundred thirty-one billion, three hundred one million, four hundred twenty thousand, seventy-three".