513202451321 has 8 divisors (see below), whose sum is σ = 586538300544. Its totient is φ = 439871905440.

The previous prime is 513202451287. The next prime is 513202451341. The reversal of 513202451321 is 123154202315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 513202451321 - 2⁶ = 513202451257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (513202451341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1116260 + ... + 1507461.

It is an arithmetic number, because the mean of its divisors is an integer number (73317287568).

Almost surely, 2^513202451321 is an apocalyptic number.

It is an amenable number.

513202451321 is a deficient number, since it is larger than the sum of its proper divisors (73335849223).

513202451321 is a wasteful number, since it uses less digits than its factorization.

513202451321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2651671.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 513202451321 its reverse (123154202315), we get a palindrome (636356653636).

The spelling of 513202451321 in words is "five hundred thirteen billion, two hundred two million, four hundred fifty-one thousand, three hundred twenty-one".