230243431 has 4 divisors (see below), whose sum is σ = 251174664. Its totient is φ = 209312200.

The previous prime is 230243381. The next prime is 230243437. The reversal of 230243431 is 134342032.

It is a happy number.

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 230243431 - 2¹⁹ = 229719143 is a prime.

It is a super-2 number, since 2×230243431² = 106024075037303522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230243437) 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 3 ways as a sum of consecutive naturals, for example, 10465600 + ... + 10465621.

It is an arithmetic number, because the mean of its divisors is an integer number (62793666).

Almost surely, 2^230243431 is an apocalyptic number.

230243431 is a deficient number, since it is larger than the sum of its proper divisors (20931233).

230243431 is a wasteful number, since it uses less digits than its factorization.

230243431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20931232.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 230243431 is about 15173.7744480403. The cubic root of 230243431 is about 612.9086483576.

Adding to 230243431 its reverse (134342032), we get a palindrome (364585463).

The spelling of 230243431 in words is "two hundred thirty million, two hundred forty-three thousand, four hundred thirty-one".