511005340343 has 2 divisors, whose sum is σ = 511005340344. Its totient is φ = 511005340342.

The previous prime is 511005340297. The next prime is 511005340357. The reversal of 511005340343 is 343043500115.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 511005340343 - 2¹⁶ = 511005274807 is a prime.

It is a super-2 number, since 2×511005340343² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (511005340943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255502670171 + 255502670172.

It is an arithmetic number, because the mean of its divisors is an integer number (255502670172).

Almost surely, 2^511005340343 is an apocalyptic number.

511005340343 is a deficient number, since it is larger than the sum of its proper divisors (1).

511005340343 is an equidigital number, since it uses as much as digits as its factorization.

511005340343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 511005340343 its reverse (343043500115), we get a palindrome (854048840458).

The spelling of 511005340343 in words is "five hundred eleven billion, five million, three hundred forty thousand, three hundred forty-three".