513262320123241 has 8 divisors (see below), whose sum is σ = 552744213141960. Its totient is φ = 473780452259712.

The previous prime is 513262320123211. The next prime is 513262320123247. The reversal of 513262320123241 is 142321023262315.

It can be written as a sum of positive squares in 4 ways, for example, as 140768614514025 + 372493705609216 = 11864595^2 + 19300096^2 .

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

It is not a de Polignac number, because 513262320123241 - 2²¹ = 513262318026089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 513262320123241.

It is not an unprimeable number, because it can be changed into a prime (513262320123247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75110931 + ... + 81658903.

It is an arithmetic number, because the mean of its divisors is an integer number (69093026642745).

Almost surely, 2^{513262320123241} is an apocalyptic number.

It is an amenable number.

513262320123241 is a deficient number, since it is larger than the sum of its proper divisors (39481893018719).

513262320123241 is a wasteful number, since it uses less digits than its factorization.

513262320123241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12577595.

The product of its (nonzero) digits is 103680, while the sum is 37.

Adding to 513262320123241 its reverse (142321023262315), we get a palindrome (655583343385556).

The spelling of 513262320123241 in words is "five hundred thirteen trillion, two hundred sixty-two billion, three hundred twenty million, one hundred twenty-three thousand, two hundred forty-one".