523520130054321 has 12 divisors (see below), whose sum is σ = 756205924855680. Its totient is φ = 349008720908280.

The previous prime is 523520130054319. The next prime is 523520130054353. The reversal of 523520130054321 is 123450031025325.

523520130054321 is a `hidden beast` number, since 5 + 2 + 3 + 5 + 20 + 1 + 300 + 5 + 4 + 321 = 666.

It is not a de Polignac number, because 523520130054321 - 2¹ = 523520130054319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (523520130059321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 390888345 + ... + 392225366.

It is an arithmetic number, because the mean of its divisors is an integer number (63017160404640).

Almost surely, 2^{523520130054321} is an apocalyptic number.

It is an amenable number.

523520130054321 is a deficient number, since it is larger than the sum of its proper divisors (232685794801359).

523520130054321 is a wasteful number, since it uses less digits than its factorization.

523520130054321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783187996 (or 783187993 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

Adding to 523520130054321 its reverse (123450031025325), we get a palindrome (646970161079646).

The spelling of 523520130054321 in words is "five hundred twenty-three trillion, five hundred twenty billion, one hundred thirty million, fifty-four thousand, three hundred twenty-one".