511020640230 has 32 divisors (see below), whose sum is σ = 1290999513600. Its totient is φ = 129099951072.

The previous prime is 511020640219. The next prime is 511020640243. The reversal of 511020640230 is 32046020115.

It is a super-2 number, since 2×511020640230² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 511020640230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 448263150 + ... + 448264289.

It is an arithmetic number, because the mean of its divisors is an integer number (40343734800).

Almost surely, 2^511020640230 is an apocalyptic number.

511020640230 is an abundant number, since it is smaller than the sum of its proper divisors (779978873370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

511020640230 is a wasteful number, since it uses less digits than its factorization.

511020640230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896527468.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 511020640230 its reverse (32046020115), we get a palindrome (543066660345).

The spelling of 511020640230 in words is "five hundred eleven billion, twenty million, six hundred forty thousand, two hundred thirty".