20443314211 has 4 divisors (see below), whose sum is σ = 20443895800. Its totient is φ = 20442732624.

The previous prime is 20443314193. The next prime is 20443314257. The reversal of 20443314211 is 11241334402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11241334402 = 2 ⋅5620667201.

It is a cyclic number.

It is not a de Polignac number, because 20443314211 - 2¹⁷ = 20443183139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20443314611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234426 + ... + 309583.

It is an arithmetic number, because the mean of its divisors is an integer number (5110973950).

Almost surely, 2^20443314211 is an apocalyptic number.

20443314211 is a deficient number, since it is larger than the sum of its proper divisors (581589).

20443314211 is an equidigital number, since it uses as much as digits as its factorization.

20443314211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581588.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 20443314211 its reverse (11241334402), we get a palindrome (31684648613).

The spelling of 20443314211 in words is "twenty billion, four hundred forty-three million, three hundred fourteen thousand, two hundred eleven".