20350543211 has 2 divisors, whose sum is σ = 20350543212. Its totient is φ = 20350543210.

The previous prime is 20350543163. The next prime is 20350543219. The reversal of 20350543211 is 11234505302.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20350543211 - 2³⁰ = 19276801387 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (20350543219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10175271605 + 10175271606.

It is an arithmetic number, because the mean of its divisors is an integer number (10175271606).

Almost surely, 2^20350543211 is an apocalyptic number.

20350543211 is a deficient number, since it is larger than the sum of its proper divisors (1).

20350543211 is an equidigital number, since it uses as much as digits as its factorization.

20350543211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 26.

The spelling of 20350543211 in words is "twenty billion, three hundred fifty million, five hundred forty-three thousand, two hundred eleven".