513301034123531 has 4 divisors (see below), whose sum is σ = 524222332721952. Its totient is φ = 502379735525112.

The previous prime is 513301034123513. The next prime is 513301034123593. The reversal of 513301034123531 is 135321430103315.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 513301034123531 - 2¹⁰ = 513301034122507 is a prime.

It is a super-2 number, since 2×513301034123531² (a number of 30 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 = 513301034123491 and 513301034123500.

It is not an unprimeable number, because it can be changed into a prime (513301034143531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5460649299140 + ... + 5460649299233.

It is an arithmetic number, because the mean of its divisors is an integer number (131055583180488).

Almost surely, 2^{513301034123531} is an apocalyptic number.

513301034123531 is a deficient number, since it is larger than the sum of its proper divisors (10921298598421).

513301034123531 is a wasteful number, since it uses less digits than its factorization.

513301034123531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10921298598420.

The product of its (nonzero) digits is 48600, while the sum is 35.

Adding to 513301034123531 its reverse (135321430103315), we get a palindrome (648622464226846).

The spelling of 513301034123531 in words is "five hundred thirteen trillion, three hundred one billion, thirty-four million, one hundred twenty-three thousand, five hundred thirty-one".