20939352211 has 8 divisors (see below), whose sum is σ = 22063288400. Its totient is φ = 19817602560.

The previous prime is 20939352179. The next prime is 20939352223. The reversal of 20939352211 is 11225393902.

It is a happy number.

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 20939352211 - 2⁵ = 20939352179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20939352271) 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, 526950 + ... + 565291.

It is an arithmetic number, because the mean of its divisors is an integer number (2757911050).

Almost surely, 2^20939352211 is an apocalyptic number.

20939352211 is a deficient number, since it is larger than the sum of its proper divisors (1123936189).

20939352211 is a wasteful number, since it uses less digits than its factorization.

20939352211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093269.

The product of its (nonzero) digits is 29160, while the sum is 37.

The spelling of 20939352211 in words is "twenty billion, nine hundred thirty-nine million, three hundred fifty-two thousand, two hundred eleven".