523103213 has 8 divisors (see below), whose sum is σ = 538233696. Its totient is φ = 508107600.

The previous prime is 523103183. The next prime is 523103233. The reversal of 523103213 is 312301325.

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-523103213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523103233) 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, 25823 + ... + 41388.

It is an arithmetic number, because the mean of its divisors is an integer number (67279212).

Almost surely, 2^523103213 is an apocalyptic number.

It is an amenable number.

523103213 is a deficient number, since it is larger than the sum of its proper divisors (15130483).

523103213 is a wasteful number, since it uses less digits than its factorization.

523103213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67435.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 523103213 is about 22871.4497354234. The cubic root of 523103213 is about 805.7416171453.

Adding to 523103213 its reverse (312301325), we get a palindrome (835404538).

The spelling of 523103213 in words is "five hundred twenty-three million, one hundred three thousand, two hundred thirteen".