40423313231 has 8 divisors (see below), whose sum is σ = 46269480960. Its totient is φ = 34594997688.

The previous prime is 40423313209. The next prime is 40423313263. The reversal of 40423313231 is 13231332404.

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 40423313231 - 2¹⁰ = 40423312207 is a prime.

It is a super-2 number, since 2×40423313231² (a number of 22 digits) contains 22 as substring.

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 40423313231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40423313291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4458191 + ... + 4467248.

It is an arithmetic number, because the mean of its divisors is an integer number (5783685120).

Almost surely, 2^40423313231 is an apocalyptic number.

40423313231 is a deficient number, since it is larger than the sum of its proper divisors (5846167729).

40423313231 is an equidigital number, since it uses as much as digits as its factorization.

40423313231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8926093.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 40423313231 its reverse (13231332404), we get a palindrome (53654645635).

The spelling of 40423313231 in words is "forty billion, four hundred twenty-three million, three hundred thirteen thousand, two hundred thirty-one".