240231043 has 4 divisors (see below), whose sum is σ = 258710368. Its totient is φ = 221751720.

The previous prime is 240231001. The next prime is 240231077. The reversal of 240231043 is 340132042.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 340132042 = 2 ⋅170066021.

It is a cyclic number.

It is not a de Polignac number, because 240231043 - 2⁹ = 240230531 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 240231043.

It is not an unprimeable number, because it can be changed into a prime (240231083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9239643 + ... + 9239668.

It is an arithmetic number, because the mean of its divisors is an integer number (64677592).

Almost surely, 2^240231043 is an apocalyptic number.

240231043 is a deficient number, since it is larger than the sum of its proper divisors (18479325).

240231043 is a wasteful number, since it uses less digits than its factorization.

240231043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18479324.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 240231043 is about 15499.3884718075. The cubic root of 240231043 is about 621.6458550998.

Adding to 240231043 its reverse (340132042), we get a palindrome (580363085).

Subtracting 240231043 from its reverse (340132042), we obtain a palindrome (99900999).

The spelling of 240231043 in words is "two hundred forty million, two hundred thirty-one thousand, forty-three".