4043031231 has 4 divisors (see below), whose sum is σ = 5390708312. Its totient is φ = 2695354152.

The previous prime is 4043031217. The next prime is 4043031247. The reversal of 4043031231 is 1321303404.

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

It is not a de Polignac number, because 4043031231 - 2⁵ = 4043031199 is a prime.

It is a super-2 number, since 2×4043031231² = 32692203069682750722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4043031198 and 4043031207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4043031211) 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, 673838536 + ... + 673838541.

It is an arithmetic number, because the mean of its divisors is an integer number (1347677078).

Almost surely, 2^4043031231 is an apocalyptic number.

4043031231 is a deficient number, since it is larger than the sum of its proper divisors (1347677081).

4043031231 is a wasteful number, since it uses less digits than its factorization.

4043031231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1347677080.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 4043031231 is about 63584.8349136805. The cubic root of 4043031231 is about 1593.0730792526.

Adding to 4043031231 its reverse (1321303404), we get a palindrome (5364334635).

The spelling of 4043031231 in words is "four billion, forty-three million, thirty-one thousand, two hundred thirty-one".