523331213 has 8 divisors (see below), whose sum is σ = 578207808. Its totient is φ = 471131584.

The previous prime is 523331189. The next prime is 523331267. The reversal of 523331213 is 312133325.

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

It is a cyclic number.

It is not a de Polignac number, because 523331213 - 2¹⁴ = 523314829 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523331513) 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, 668831 + ... + 669612.

It is an arithmetic number, because the mean of its divisors is an integer number (72275976).

Almost surely, 2^523331213 is an apocalyptic number.

It is an amenable number.

523331213 is a deficient number, since it is larger than the sum of its proper divisors (54876595).

523331213 is a wasteful number, since it uses less digits than its factorization.

523331213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338483.

The product of its digits is 1620, while the sum is 23.

The square root of 523331213 is about 22876.4335725655. The cubic root of 523331213 is about 805.8586637753.

Adding to 523331213 its reverse (312133325), we get a palindrome (835464538).

It can be divided in two parts, 5233312 and 13, that added together give a palindrome (5233325).

The spelling of 523331213 in words is "five hundred twenty-three million, three hundred thirty-one thousand, two hundred thirteen".