231300043 has 4 divisors (see below), whose sum is σ = 249092368. Its totient is φ = 213507720.

The previous prime is 231299953. The next prime is 231300049. The reversal of 231300043 is 340003132.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231300043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231300049) 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, 8896143 + ... + 8896168.

It is an arithmetic number, because the mean of its divisors is an integer number (62273092).

Almost surely, 2^231300043 is an apocalyptic number.

231300043 is a deficient number, since it is larger than the sum of its proper divisors (17792325).

231300043 is a wasteful number, since it uses less digits than its factorization.

231300043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17792324.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 231300043 is about 15208.5516404423. The cubic root of 231300043 is about 613.8447858220.

Adding to 231300043 its reverse (340003132), we get a palindrome (571303175).

The spelling of 231300043 in words is "two hundred thirty-one million, three hundred thousand, forty-three".