20040522321 has 8 divisors (see below), whose sum is σ = 26723464704. Its totient is φ = 13358964080.

The previous prime is 20040522317. The next prime is 20040522347. The reversal of 20040522321 is 12322504002.

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

It is a cyclic number.

It is not a de Polignac number, because 20040522321 - 2² = 20040522317 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20040521321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311766 + ... + 370511.

It is an arithmetic number, because the mean of its divisors is an integer number (3340433088).

Almost surely, 2^20040522321 is an apocalyptic number.

It is an amenable number.

20040522321 is a deficient number, since it is larger than the sum of its proper divisors (6682942383).

20040522321 is an equidigital number, since it uses as much as digits as its factorization.

20040522321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692071.

The product of its (nonzero) digits is 960, while the sum is 21.

It can be divided in two parts, 20040 and 522321, that added together give a triangular number (542361 = T₁₀₄₁).

The spelling of 20040522321 in words is "twenty billion, forty million, five hundred twenty-two thousand, three hundred twenty-one".