513105203206 has 4 divisors (see below), whose sum is σ = 769657804812. Its totient is φ = 256552601602.

The previous prime is 513105203147. The next prime is 513105203207. The reversal of 513105203206 is 602302501315.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513105203207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128276300800 + ... + 128276300803.

It is an arithmetic number, because the mean of its divisors is an integer number (192414451203).

Almost surely, 2^513105203206 is an apocalyptic number.

513105203206 is a deficient number, since it is larger than the sum of its proper divisors (256552601606).

513105203206 is a wasteful number, since it uses less digits than its factorization.

513105203206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256552601605.

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

The spelling of 513105203206 in words is "five hundred thirteen billion, one hundred five million, two hundred three thousand, two hundred six".