40243334440231 has 4 divisors (see below), whose sum is σ = 43338975551032. Its totient is φ = 37147693329432.

The previous prime is 40243334440157. The next prime is 40243334440247. The reversal of 40243334440231 is 13204443334204.

40243334440231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 40243334440231 - 2²³ = 40243326051623 is a prime.

It is a super-2 number, since 2×40243334440231² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40243334470231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1547820555381 + ... + 1547820555406.

It is an arithmetic number, because the mean of its divisors is an integer number (10834743887758).

Almost surely, 2^{40243334440231} is an apocalyptic number.

40243334440231 is a deficient number, since it is larger than the sum of its proper divisors (3095641110801).

40243334440231 is a wasteful number, since it uses less digits than its factorization.

40243334440231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3095641110800.

The product of its (nonzero) digits is 331776, while the sum is 37.

Adding to 40243334440231 its reverse (13204443334204), we get a palindrome (53447777774435).

The spelling of 40243334440231 in words is "forty trillion, two hundred forty-three billion, three hundred thirty-four million, four hundred forty thousand, two hundred thirty-one".