523112213 has 8 divisors (see below), whose sum is σ = 567653856. Its totient is φ = 479185200.

The previous prime is 523112201. The next prime is 523112221. The reversal of 523112213 is 312211325.

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

It is a de Polignac number, because none of the positive numbers 2^k-523112213 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 (523132213) 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, 151883 + ... + 155288.

It is an arithmetic number, because the mean of its divisors is an integer number (70956732).

Almost surely, 2^523112213 is an apocalyptic number.

It is an amenable number.

523112213 is a deficient number, since it is larger than the sum of its proper divisors (44541643).

523112213 is a wasteful number, since it uses less digits than its factorization.

523112213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307315.

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

The square root of 523112213 is about 22871.6464864251. The cubic root of 523112213 is about 805.7462380517.

Adding to 523112213 its reverse (312211325), we get a palindrome (835323538).

It can be divided in two parts, 523112 and 213, that added together give a palindrome (523325).

The spelling of 523112213 in words is "five hundred twenty-three million, one hundred twelve thousand, two hundred thirteen".