43540231223 has 8 divisors (see below), whose sum is σ = 45834556800. Its totient is φ = 41246179128.

The previous prime is 43540231169. The next prime is 43540231247. The reversal of 43540231223 is 32213204534.

It is a happy number.

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 43540231223 - 2¹⁸ = 43539969079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43540231283) 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 7 ways as a sum of consecutive naturals, for example, 313040 + ... + 430202.

It is an arithmetic number, because the mean of its divisors is an integer number (5729319600).

Almost surely, 2^43540231223 is an apocalyptic number.

43540231223 is a deficient number, since it is larger than the sum of its proper divisors (2294325577).

43540231223 is a wasteful number, since it uses less digits than its factorization.

43540231223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136741.

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 43540231223 its reverse (32213204534), we get a palindrome (75753435757).

The spelling of 43540231223 in words is "forty-three billion, five hundred forty million, two hundred thirty-one thousand, two hundred twenty-three".