40203443231 has 8 divisors (see below), whose sum is σ = 45952438944. Its totient is φ = 34455859200.

The previous prime is 40203443201. The next prime is 40203443257. The reversal of 40203443231 is 13234430204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40203443231 - 2³⁰ = 39129701407 is a prime.

It is a super-2 number, since 2×40203443231² (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 40203443231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40203443201) 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, 291170 + ... + 406431.

It is an arithmetic number, because the mean of its divisors is an integer number (5744054868).

Almost surely, 2^40203443231 is an apocalyptic number.

40203443231 is a deficient number, since it is larger than the sum of its proper divisors (5748995713).

40203443231 is an equidigital number, since it uses as much as digits as its factorization.

40203443231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705841.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 40203443231 its reverse (13234430204), we get a palindrome (53437873435).

The spelling of 40203443231 in words is "forty billion, two hundred three million, four hundred forty-three thousand, two hundred thirty-one".