511246304423 has 2 divisors, whose sum is σ = 511246304424. Its totient is φ = 511246304422.

The previous prime is 511246304417. The next prime is 511246304441. The reversal of 511246304423 is 324403642115.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 511246304423 - 2²⁰ = 511245255847 is a prime.

It is a super-2 number, since 2×511246304423² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (511246304453) 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, 255623152211 + 255623152212.

It is an arithmetic number, because the mean of its divisors is an integer number (255623152212).

Almost surely, 2^511246304423 is an apocalyptic number.

511246304423 is a deficient number, since it is larger than the sum of its proper divisors (1).

511246304423 is an equidigital number, since it uses as much as digits as its factorization.

511246304423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 511246304423 its reverse (324403642115), we get a palindrome (835649946538).

The spelling of 511246304423 in words is "five hundred eleven billion, two hundred forty-six million, three hundred four thousand, four hundred twenty-three".