531382487123 has 2 divisors, whose sum is σ = 531382487124. Its totient is φ = 531382487122.

The previous prime is 531382487113. The next prime is 531382487161. The reversal of 531382487123 is 321784283135.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 531382487123 - 2¹⁸ = 531382224979 is a prime.

It is not a weakly prime, because it can be changed into another prime (531382487113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265691243561 + 265691243562.

It is an arithmetic number, because the mean of its divisors is an integer number (265691243562).

Almost surely, 2^531382487123 is an apocalyptic number.

531382487123 is a deficient number, since it is larger than the sum of its proper divisors (1).

531382487123 is an equidigital number, since it uses as much as digits as its factorization.

531382487123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 967680, while the sum is 47.

The spelling of 531382487123 in words is "five hundred thirty-one billion, three hundred eighty-two million, four hundred eighty-seven thousand, one hundred twenty-three".