231043523 has 8 divisors (see below), whose sum is σ = 234414336. Its totient is φ = 227694600.

The previous prime is 231043517. The next prime is 231043559. The reversal of 231043523 is 325340132.

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 231043523 - 2¹⁰ = 231042499 is a prime.

It is a super-2 number, since 2×231043523² = 106762219040503058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231043573) 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, 16418 + ... + 27048.

It is an arithmetic number, because the mean of its divisors is an integer number (29301792).

Almost surely, 2^231043523 is an apocalyptic number.

231043523 is a deficient number, since it is larger than the sum of its proper divisors (3370813).

231043523 is a wasteful number, since it uses less digits than its factorization.

231043523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10945.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 231043523 is about 15200.1158877161. The cubic root of 231043523 is about 613.6177766249.

Adding to 231043523 its reverse (325340132), we get a palindrome (556383655).

The spelling of 231043523 in words is "two hundred thirty-one million, forty-three thousand, five hundred twenty-three".