20312444054311 has 4 divisors (see below), whose sum is σ = 20312756632872. Its totient is φ = 20312131475752.

The previous prime is 20312444054303. The next prime is 20312444054333. The reversal of 20312444054311 is 11345044421302.

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 20312444054311 - 2³ = 20312444054303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20312444054411) 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, 156191785 + ... + 156321778.

It is an arithmetic number, because the mean of its divisors is an integer number (5078189158218).

Almost surely, 2^{20312444054311} is an apocalyptic number.

20312444054311 is a deficient number, since it is larger than the sum of its proper divisors (312578561).

20312444054311 is an equidigital number, since it uses as much as digits as its factorization.

20312444054311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312578560.

The product of its (nonzero) digits is 46080, while the sum is 34.

Adding to 20312444054311 its reverse (11345044421302), we get a palindrome (31657488475613).

The spelling of 20312444054311 in words is "twenty trillion, three hundred twelve billion, four hundred forty-four million, fifty-four thousand, three hundred eleven".