517512123130 has 16 divisors (see below), whose sum is σ = 932535463680. Its totient is φ = 206779595472.

The previous prime is 517512123017. The next prime is 517512123133. The reversal of 517512123130 is 31321215715.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 517512123092 and 517512123101.

It is not an unprimeable number, because it can be changed into a prime (517512123133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28147074 + ... + 28165453.

It is an arithmetic number, because the mean of its divisors is an integer number (58283466480).

Almost surely, 2^517512123130 is an apocalyptic number.

517512123130 is a deficient number, since it is larger than the sum of its proper divisors (415023340550).

517512123130 is a wasteful number, since it uses less digits than its factorization.

517512123130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56313453.

The product of its (nonzero) digits is 6300, while the sum is 31.

Adding to 517512123130 its reverse (31321215715), we get a palindrome (548833338845).

The spelling of 517512123130 in words is "five hundred seventeen billion, five hundred twelve million, one hundred twenty-three thousand, one hundred thirty".