40503323431 has 8 divisors (see below), whose sum is σ = 41441892624. Its totient is φ = 39575125440.

The previous prime is 40503323423. The next prime is 40503323453. The reversal of 40503323431 is 13432330504.

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 40503323431 - 2³ = 40503323423 is a prime.

It is a super-2 number, since 2×40503323431² (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 40503323431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40503323401) 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, 2584900 + ... + 2600521.

It is an arithmetic number, because the mean of its divisors is an integer number (5180236578).

Almost surely, 2^40503323431 is an apocalyptic number.

40503323431 is a deficient number, since it is larger than the sum of its proper divisors (938569193).

40503323431 is a wasteful number, since it uses less digits than its factorization.

40503323431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5185601.

The product of its (nonzero) digits is 12960, while the sum is 28.

Adding to 40503323431 its reverse (13432330504), we get a palindrome (53935653935).

The spelling of 40503323431 in words is "forty billion, five hundred three million, three hundred twenty-three thousand, four hundred thirty-one".