523112321 has 8 divisors (see below), whose sum is σ = 571751424. Its totient is φ = 476458560.

The previous prime is 523112311. The next prime is 523112339. The reversal of 523112321 is 123211325.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-523112321 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 523112293 and 523112302.

It is not an unprimeable number, because it can be changed into a prime (523112311) 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, 495785 + ... + 496838.

It is an arithmetic number, because the mean of its divisors is an integer number (71468928).

Almost surely, 2^523112321 is an apocalyptic number.

It is an amenable number.

523112321 is a deficient number, since it is larger than the sum of its proper divisors (48639103).

523112321 is a wasteful number, since it uses less digits than its factorization.

523112321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992671.

The product of its digits is 360, while the sum is 20.

The square root of 523112321 is about 22871.6488474268. The cubic root of 523112321 is about 805.7462935023.

Adding to 523112321 its reverse (123211325), we get a palindrome (646323646).

The spelling of 523112321 in words is "five hundred twenty-three million, one hundred twelve thousand, three hundred twenty-one".