40003231503 has 16 divisors (see below), whose sum is σ = 57662318720. Its totient is φ = 24582354336.

The previous prime is 40003231469. The next prime is 40003231517. The reversal of 40003231503 is 30513230004.

It is not a de Polignac number, because 40003231503 - 2³⁰ = 38929489679 is a prime.

It is a super-2 number, since 2×40003231503² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40003231503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40003231523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9481825 + ... + 9486042.

It is an arithmetic number, because the mean of its divisors is an integer number (3603894920).

Almost surely, 2^40003231503 is an apocalyptic number.

40003231503 is a deficient number, since it is larger than the sum of its proper divisors (17659087217).

40003231503 is a wasteful number, since it uses less digits than its factorization.

40003231503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18967926.

The product of its (nonzero) digits is 1080, while the sum is 21.

Adding to 40003231503 its reverse (30513230004), we get a palindrome (70516461507).

The spelling of 40003231503 in words is "forty billion, three million, two hundred thirty-one thousand, five hundred three".