231040043 has 8 divisors (see below), whose sum is σ = 254881536. Its totient is φ = 208065600.

The previous prime is 231040039. The next prime is 231040067. The reversal of 231040043 is 340040132.

231040043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 231040043 - 2² = 231040039 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231040093) 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, 216203 + ... + 217268.

It is an arithmetic number, because the mean of its divisors is an integer number (31860192).

Almost surely, 2^231040043 is an apocalyptic number.

231040043 is a deficient number, since it is larger than the sum of its proper divisors (23841493).

231040043 is a wasteful number, since it uses less digits than its factorization.

231040043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433525.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 231040043 is about 15200.0014144736. The cubic root of 231040043 is about 613.6146958192.

Adding to 231040043 its reverse (340040132), we get a palindrome (571080175).

The spelling of 231040043 in words is "two hundred thirty-one million, forty thousand, forty-three".