531005147423 has 2 divisors, whose sum is σ = 531005147424. Its totient is φ = 531005147422.

The previous prime is 531005147371. The next prime is 531005147447. The reversal of 531005147423 is 324741500135.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 531005147423 - 2⁶ = 531005147359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531085147423) 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, 265502573711 + 265502573712.

It is an arithmetic number, because the mean of its divisors is an integer number (265502573712).

Almost surely, 2^531005147423 is an apocalyptic number.

531005147423 is a deficient number, since it is larger than the sum of its proper divisors (1).

531005147423 is an equidigital number, since it uses as much as digits as its factorization.

531005147423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 35.

Adding to 531005147423 its reverse (324741500135), we get a palindrome (855746647558).

The spelling of 531005147423 in words is "five hundred thirty-one billion, five million, one hundred forty-seven thousand, four hundred twenty-three".