20323313012311 has 16 divisors (see below), whose sum is σ = 20620599840000. Its totient is φ = 20027666691648.

The previous prime is 20323313012287. The next prime is 20323313012363. The reversal of 20323313012311 is 11321031332302.

It is a cyclic number.

It is not a de Polignac number, because 20323313012311 - 2³¹ = 20321165528663 is a prime.

It is a super-2 number, since 2×20323313012311² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20323313912311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32689420 + ... + 33305326.

It is an arithmetic number, because the mean of its divisors is an integer number (1288787490000).

Almost surely, 2^{20323313012311} is an apocalyptic number.

20323313012311 is a deficient number, since it is larger than the sum of its proper divisors (297286827689).

20323313012311 is an equidigital number, since it uses as much as digits as its factorization.

20323313012311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617238.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 20323313012311 its reverse (11321031332302), we get a palindrome (31644344344613).

The spelling of 20323313012311 in words is "twenty trillion, three hundred twenty-three billion, three hundred thirteen million, twelve thousand, three hundred eleven".