40004533121503 has 6 divisors (see below), whose sum is σ = 42220850746344. Its totient is φ = 37899031377924.

The previous prime is 40004533121489. The next prime is 40004533121513. The reversal of 40004533121503 is 30512133540004.

It is not a de Polignac number, because 40004533121503 - 2⁵ = 40004533121471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40004533121513) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55407940251 + ... + 55407940972.

It is an arithmetic number, because the mean of its divisors is an integer number (7036808457724).

Almost surely, 2^{40004533121503} is an apocalyptic number.

40004533121503 is a deficient number, since it is larger than the sum of its proper divisors (2216317624841).

40004533121503 is a wasteful number, since it uses less digits than its factorization.

40004533121503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110815881261 (or 110815881242 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 40004533121503 its reverse (30512133540004), we get a palindrome (70516666661507).

The spelling of 40004533121503 in words is "forty trillion, four billion, five hundred thirty-three million, one hundred twenty-one thousand, five hundred three".