231045243 has 16 divisors (see below), whose sum is σ = 361917696. Its totient is φ = 129255840.

The previous prime is 231045193. The next prime is 231045257. The reversal of 231045243 is 342540132.

It is not a de Polignac number, because 231045243 - 2⁸ = 231044987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231045043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 268855 + ... + 269712.

It is an arithmetic number, because the mean of its divisors is an integer number (22619856).

Almost surely, 2^231045243 is an apocalyptic number.

231045243 is a deficient number, since it is larger than the sum of its proper divisors (130872453).

231045243 is a wasteful number, since it uses less digits than its factorization.

231045243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538594.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 231045243 is about 15200.1724661268. The cubic root of 231045243 is about 613.6192993105.

Adding to 231045243 its reverse (342540132), we get a palindrome (573585375).

The spelling of 231045243 in words is "two hundred thirty-one million, forty-five thousand, two hundred forty-three".