523016231 has 2 divisors, whose sum is σ = 523016232. Its totient is φ = 523016230.

The previous prime is 523016209. The next prime is 523016293. The reversal of 523016231 is 132610325.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-523016231 is a prime.

It is a super-2 number, since 2×523016231² = 547091955778890722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 523016197 and 523016206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (523016831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261508115 + 261508116.

It is an arithmetic number, because the mean of its divisors is an integer number (261508116).

Almost surely, 2^523016231 is an apocalyptic number.

523016231 is a deficient number, since it is larger than the sum of its proper divisors (1).

523016231 is an equidigital number, since it uses as much as digits as its factorization.

523016231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 523016231 is about 22869.5481153433. The cubic root of 523016231 is about 805.6969548935.

Adding to 523016231 its reverse (132610325), we get a palindrome (655626556).

The spelling of 523016231 in words is "five hundred twenty-three million, sixteen thousand, two hundred thirty-one".