20305340055331 has 8 divisors (see below), whose sum is σ = 21054260923200. Its totient is φ = 19559668302720.

The previous prime is 20305340055313. The next prime is 20305340055359. The reversal of 20305340055331 is 13355004350302.

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 20305340055331 - 2¹⁵ = 20305340022563 is a prime.

It is a super-3 number, since 3×20305340055331³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

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, 812266086 + ... + 812291083.

It is an arithmetic number, because the mean of its divisors is an integer number (2631782615400).

Almost surely, 2^{20305340055331} is an apocalyptic number.

20305340055331 is a deficient number, since it is larger than the sum of its proper divisors (748920867869).

20305340055331 is a wasteful number, since it uses less digits than its factorization.

20305340055331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1624557629.

The product of its (nonzero) digits is 81000, while the sum is 34.

The spelling of 20305340055331 in words is "twenty trillion, three hundred five billion, three hundred forty million, fifty-five thousand, three hundred thirty-one".