511043051323 has 24 divisors (see below), whose sum is σ = 620390139552. Its totient is φ = 418948193664.

The previous prime is 511043051297. The next prime is 511043051339. The reversal of 511043051323 is 323150340115.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-511043051323 is a prime.

It is a super-2 number, since 2×511043051323² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 511043051291 and 511043051300.

It is not an unprimeable number, because it can be changed into a prime (511043051383) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15104061 + ... + 15137857.

It is an arithmetic number, because the mean of its divisors is an integer number (25849589148).

Almost surely, 2^511043051323 is an apocalyptic number.

511043051323 is a deficient number, since it is larger than the sum of its proper divisors (109347088229).

511043051323 is a wasteful number, since it uses less digits than its factorization.

511043051323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47251 (or 47244 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 511043051323 its reverse (323150340115), we get a palindrome (834193391438).

The spelling of 511043051323 in words is "five hundred eleven billion, forty-three million, fifty-one thousand, three hundred twenty-three".