20312200211 has 4 divisors (see below), whose sum is σ = 21381263400. Its totient is φ = 19243137024.

The previous prime is 20312200201. The next prime is 20312200247. The reversal of 20312200211 is 11200221302.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11200221302 = 2 ⋅5600110651.

It is a cyclic number.

It is not a de Polignac number, because 20312200211 - 2¹⁸ = 20311938067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20312200201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 534531566 + ... + 534531603.

It is an arithmetic number, because the mean of its divisors is an integer number (5345315850).

Almost surely, 2^20312200211 is an apocalyptic number.

20312200211 is a deficient number, since it is larger than the sum of its proper divisors (1069063189).

20312200211 is a wasteful number, since it uses less digits than its factorization.

20312200211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069063188.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20312200211 its reverse (11200221302), we get a palindrome (31512421513).

The spelling of 20312200211 in words is "twenty billion, three hundred twelve million, two hundred thousand, two hundred eleven".