513454352110321 has 4 divisors (see below), whose sum is σ = 516724761996532. Its totient is φ = 510183942224112.

The previous prime is 513454352110253. The next prime is 513454352110331. The reversal of 513454352110321 is 123011253454315.

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

It can be written as a sum of positive squares in 2 ways, for example, as 216459451178721 + 296994900931600 = 14712561^2 + 17233540^2 .

It is a cyclic number.

It is not a de Polignac number, because 513454352110321 - 2¹⁵ = 513454352077553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (513454352110331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1635204942870 + ... + 1635204943183.

It is an arithmetic number, because the mean of its divisors is an integer number (129181190499133).

Almost surely, 2^{513454352110321} is an apocalyptic number.

It is an amenable number.

513454352110321 is a deficient number, since it is larger than the sum of its proper divisors (3270409886211).

513454352110321 is a wasteful number, since it uses less digits than its factorization.

513454352110321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3270409886210.

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 513454352110321 in words is "five hundred thirteen trillion, four hundred fifty-four billion, three hundred fifty-two million, one hundred ten thousand, three hundred twenty-one".