20312311322311 has 8 divisors (see below), whose sum is σ = 20917077227024. Its totient is φ = 19713562989120.

The previous prime is 20312311322291. The next prime is 20312311322371. The reversal of 20312311322311 is 11322311321302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20312311322311 - 2³⁵ = 20277951583943 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 (20312311322371) 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 7 ways as a sum of consecutive naturals, for example, 1504386030 + ... + 1504399531.

It is an arithmetic number, because the mean of its divisors is an integer number (2614634653378).

Almost surely, 2^{20312311322311} is an apocalyptic number.

20312311322311 is a deficient number, since it is larger than the sum of its proper divisors (604765904713).

20312311322311 is a wasteful number, since it uses less digits than its factorization.

20312311322311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3008785761.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 20312311322311 its reverse (11322311321302), we get a palindrome (31634622643613).

The spelling of 20312311322311 in words is "twenty trillion, three hundred twelve billion, three hundred eleven million, three hundred twenty-two thousand, three hundred eleven".