20432213211 has 4 divisors (see below), whose sum is σ = 27242950952. Its totient is φ = 13621475472.

The previous prime is 20432213209. The next prime is 20432213239. The reversal of 20432213211 is 11231223402.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 20432213211 - 2¹ = 20432213209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20432213201) 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 3 ways as a sum of consecutive naturals, for example, 3405368866 + ... + 3405368871.

It is an arithmetic number, because the mean of its divisors is an integer number (6810737738).

Almost surely, 2^20432213211 is an apocalyptic number.

20432213211 is a deficient number, since it is larger than the sum of its proper divisors (6810737741).

20432213211 is an equidigital number, since it uses as much as digits as its factorization.

20432213211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6810737740.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20432213211 its reverse (11231223402), we get a palindrome (31663436613).

The spelling of 20432213211 in words is "twenty billion, four hundred thirty-two million, two hundred thirteen thousand, two hundred eleven".