521045035030312 has 16 divisors (see below), whose sum is σ = 1052110166888340. Its totient is φ = 240482323860096.

The previous prime is 521045035030271. The next prime is 521045035030319. The reversal of 521045035030312 is 213030530540125.

It can be written as a sum of positive squares in 2 ways, for example, as 509462951693796 + 11582083336516 = 22571286^2 + 3403246^2 .

It is not an unprimeable number, because it can be changed into a prime (521045035030319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2505024206773 + ... + 2505024206980.

Almost surely, 2^{521045035030312} is an apocalyptic number.

521045035030312 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

521045035030312 is an abundant number, since it is smaller than the sum of its proper divisors (531065131858028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

521045035030312 is a wasteful number, since it uses less digits than its factorization.

521045035030312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5010048413772 (or 5010048413768 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 34.

Adding to 521045035030312 its reverse (213030530540125), we get a palindrome (734075565570437).

The spelling of 521045035030312 in words is "five hundred twenty-one trillion, forty-five billion, thirty-five million, thirty thousand, three hundred twelve".