505212043423 has 2 divisors, whose sum is σ = 505212043424. Its totient is φ = 505212043422.

The previous prime is 505212043361. The next prime is 505212043447. The reversal of 505212043423 is 324340212505.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 505212043423 - 2¹³ = 505212035231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505212043123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252606021711 + 252606021712.

It is an arithmetic number, because the mean of its divisors is an integer number (252606021712).

Almost surely, 2^505212043423 is an apocalyptic number.

505212043423 is a deficient number, since it is larger than the sum of its proper divisors (1).

505212043423 is an equidigital number, since it uses as much as digits as its factorization.

505212043423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 505212043423 its reverse (324340212505), we get a palindrome (829552255928).

The spelling of 505212043423 in words is "five hundred five billion, two hundred twelve million, forty-three thousand, four hundred twenty-three".