40043223031 has 16 divisors (see below), whose sum is σ = 47793867264. Its totient is φ = 32802653664.

The previous prime is 40043223023. The next prime is 40043223049. The reversal of 40043223031 is 13032234004.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 40043223031 - 2³ = 40043223023 is a prime.

It is a super-3 number, since 3×40043223031³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40043222993 and 40043223011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40043223061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86341 + ... + 295873.

It is an arithmetic number, because the mean of its divisors is an integer number (2987116704).

Almost surely, 2^40043223031 is an apocalyptic number.

40043223031 is a deficient number, since it is larger than the sum of its proper divisors (7750644233).

40043223031 is a wasteful number, since it uses less digits than its factorization.

40043223031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210750.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 40043223031 its reverse (13032234004), we get a palindrome (53075457035).

The spelling of 40043223031 in words is "forty billion, forty-three million, two hundred twenty-three thousand, thirty-one".