20323020454211 has 4 divisors (see below), whose sum is σ = 20371524083400. Its totient is φ = 20274516825024.

The previous prime is 20323020454193. The next prime is 20323020454249. The reversal of 20323020454211 is 11245402032302.

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

It is a cyclic number.

It is not a de Polignac number, because 20323020454211 - 2¹⁰ = 20323020453187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20323020444211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24251813966 + ... + 24251814803.

It is an arithmetic number, because the mean of its divisors is an integer number (5092881020850).

Almost surely, 2^{20323020454211} is an apocalyptic number.

20323020454211 is a deficient number, since it is larger than the sum of its proper divisors (48503629189).

20323020454211 is an equidigital number, since it uses as much as digits as its factorization.

20323020454211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48503629188.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 20323020454211 its reverse (11245402032302), we get a palindrome (31568422486513).

The spelling of 20323020454211 in words is "twenty trillion, three hundred twenty-three billion, twenty million, four hundred fifty-four thousand, two hundred eleven".