40303322021 has 4 divisors (see below), whose sum is σ = 40306044192. Its totient is φ = 40300599852.

The previous prime is 40303322011. The next prime is 40303322041. The reversal of 40303322021 is 12022330304.

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 40303322021 - 2⁶ = 40303321957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40303321984 and 40303322002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40303322011) 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 3 ways as a sum of consecutive naturals, for example, 1338755 + ... + 1368528.

It is an arithmetic number, because the mean of its divisors is an integer number (10076511048).

Almost surely, 2^40303322021 is an apocalyptic number.

It is an amenable number.

40303322021 is a deficient number, since it is larger than the sum of its proper divisors (2722171).

40303322021 is a wasteful number, since it uses less digits than its factorization.

40303322021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2722170.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 40303322021 its reverse (12022330304), we get a palindrome (52325652325).

The spelling of 40303322021 in words is "forty billion, three hundred three million, three hundred twenty-two thousand, twenty-one".