531003942401 has 2 divisors, whose sum is σ = 531003942402. Its totient is φ = 531003942400.

The previous prime is 531003942397. The next prime is 531003942409. The reversal of 531003942401 is 104249300135.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 330568652401 + 200435290000 = 574951^2 + 447700^2 .

It is a cyclic number.

It is not a de Polignac number, because 531003942401 - 2² = 531003942397 is a prime.

It is not a weakly prime, because it can be changed into another prime (531003942409) 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, 265501971200 + 265501971201.

It is an arithmetic number, because the mean of its divisors is an integer number (265501971201).

Almost surely, 2^531003942401 is an apocalyptic number.

It is an amenable number.

531003942401 is a deficient number, since it is larger than the sum of its proper divisors (1).

531003942401 is an equidigital number, since it uses as much as digits as its factorization.

531003942401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 531003942401 in words is "five hundred thirty-one billion, three million, nine hundred forty-two thousand, four hundred one".