20305340055321 has 8 divisors (see below), whose sum is σ = 27113777565504. Its totient is φ = 13516897957680.

The previous prime is 20305340055313. The next prime is 20305340055359. The reversal of 20305340055321 is 12355004350302.

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

It is not a de Polignac number, because 20305340055321 - 2³ = 20305340055313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20305340055391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4998850765 + ... + 4998854826.

It is an arithmetic number, because the mean of its divisors is an integer number (3389222195688).

Almost surely, 2^{20305340055321} is an apocalyptic number.

It is an amenable number.

20305340055321 is a deficient number, since it is larger than the sum of its proper divisors (6808437510183).

20305340055321 is an equidigital number, since it uses as much as digits as its factorization.

20305340055321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9997706271.

The product of its (nonzero) digits is 54000, while the sum is 33.

The spelling of 20305340055321 in words is "twenty trillion, three hundred five billion, three hundred forty million, fifty-five thousand, three hundred twenty-one".