40020431133 has 8 divisors (see below), whose sum is σ = 53549129248. Its totient is φ = 26586010224.

The previous prime is 40020431111. The next prime is 40020431137. The reversal of 40020431133 is 33113402004.

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

It is not a de Polignac number, because 40020431133 - 2¹⁶ = 40020365597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40020431137) 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 7 ways as a sum of consecutive naturals, for example, 23568310 + ... + 23570007.

It is an arithmetic number, because the mean of its divisors is an integer number (6693641156).

Almost surely, 2^40020431133 is an apocalyptic number.

It is an amenable number.

40020431133 is a deficient number, since it is larger than the sum of its proper divisors (13528698115).

40020431133 is a wasteful number, since it uses less digits than its factorization.

40020431133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47138603.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 40020431133 its reverse (33113402004), we get a palindrome (73133833137).

The spelling of 40020431133 in words is "forty billion, twenty million, four hundred thirty-one thousand, one hundred thirty-three".