40500133421 has 4 divisors (see below), whose sum is σ = 44181963744. Its totient is φ = 36818303100.

The previous prime is 40500133417. The next prime is 40500133451. The reversal of 40500133421 is 12433100504.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40500133421 - 2² = 40500133417 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 (40500133451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1840915145 + ... + 1840915166.

It is an arithmetic number, because the mean of its divisors is an integer number (11045490936).

Almost surely, 2^40500133421 is an apocalyptic number.

It is an amenable number.

40500133421 is a deficient number, since it is larger than the sum of its proper divisors (3681830323).

40500133421 is a wasteful number, since it uses less digits than its factorization.

40500133421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3681830322.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 40500133421 its reverse (12433100504), we get a palindrome (52933233925).

The spelling of 40500133421 in words is "forty billion, five hundred million, one hundred thirty-three thousand, four hundred twenty-one".