523313650321 has 32 divisors (see below), whose sum is σ = 658143518976. Its totient is φ = 407585692800.

The previous prime is 523313650291. The next prime is 523313650367. The reversal of 523313650321 is 123056313325.

It is not a de Polignac number, because 523313650321 - 2⁷ = 523313650193 is a prime.

It is a super-2 number, since 2×523313650321² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (523313650421) 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 31 ways as a sum of consecutive naturals, for example, 21799101 + ... + 21823093.

It is an arithmetic number, because the mean of its divisors is an integer number (20566984968).

Almost surely, 2^523313650321 is an apocalyptic number.

It is an amenable number.

523313650321 is a deficient number, since it is larger than the sum of its proper divisors (134829868655).

523313650321 is a wasteful number, since it uses less digits than its factorization.

523313650321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26374 (or 26352 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 34.

Adding to 523313650321 its reverse (123056313325), we get a palindrome (646369963646).

The spelling of 523313650321 in words is "five hundred twenty-three billion, three hundred thirteen million, six hundred fifty thousand, three hundred twenty-one".