513235323321501 has 16 divisors (see below), whose sum is σ = 753500967464448. Its totient is φ = 308144685764400.

The previous prime is 513235323321407. The next prime is 513235323321521. The reversal of 513235323321501 is 105123323532315.

It is not a de Polignac number, because 513235323321501 - 2¹⁸ = 513235323059357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 513235323321501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513235323321521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72675629905 + ... + 72675636966.

It is an arithmetic number, because the mean of its divisors is an integer number (47093810466528).

Almost surely, 2^{513235323321501} is an apocalyptic number.

It is an amenable number.

513235323321501 is a deficient number, since it is larger than the sum of its proper divisors (240265644142947).

513235323321501 is a wasteful number, since it uses less digits than its factorization.

513235323321501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145351266992.

The product of its (nonzero) digits is 243000, while the sum is 39.

Adding to 513235323321501 its reverse (105123323532315), we get a palindrome (618358646853816).

The spelling of 513235323321501 in words is "five hundred thirteen trillion, two hundred thirty-five billion, three hundred twenty-three million, three hundred twenty-one thousand, five hundred one".