523342231 has 4 divisors (see below), whose sum is σ = 523516264. Its totient is φ = 523168200.

The previous prime is 523342223. The next prime is 523342273. The reversal of 523342231 is 132243325.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 523342231 - 2³ = 523342223 is a prime.

It is a super-2 number, since 2×523342231² = 547774181496114722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 523342196 and 523342205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523340231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82425 + ... + 88546.

It is an arithmetic number, because the mean of its divisors is an integer number (130879066).

Almost surely, 2^523342231 is an apocalyptic number.

523342231 is a deficient number, since it is larger than the sum of its proper divisors (174033).

523342231 is a wasteful number, since it uses less digits than its factorization.

523342231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174032.

The product of its digits is 4320, while the sum is 25.

The square root of 523342231 is about 22876.6743868072. The cubic root of 523342231 is about 805.8643191412.

Adding to 523342231 its reverse (132243325), we get a palindrome (655585556).

The spelling of 523342231 in words is "five hundred twenty-three million, three hundred forty-two thousand, two hundred thirty-one".