20930822843 has 8 divisors (see below), whose sum is σ = 23921864160. Its totient is φ = 17940012480.

The previous prime is 20930822839. The next prime is 20930822881. The reversal of 20930822843 is 34822803902.

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 20930822843 - 2² = 20930822839 is a prime.

It is a super-3 number, since 3×20930822843³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20930822843.

It is not an unprimeable number, because it can be changed into a prime (20930822813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236333 + ... + 312593.

It is an arithmetic number, because the mean of its divisors is an integer number (2990233020).

Almost surely, 2^20930822843 is an apocalyptic number.

20930822843 is a deficient number, since it is larger than the sum of its proper divisors (2991041317).

20930822843 is an equidigital number, since it uses as much as digits as its factorization.

20930822843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115477.

The product of its (nonzero) digits is 165888, while the sum is 41.

The spelling of 20930822843 in words is "twenty billion, nine hundred thirty million, eight hundred twenty-two thousand, eight hundred forty-three".