20313145650311 has 4 divisors (see below), whose sum is σ = 20313337005672. Its totient is φ = 20312954294952.

The previous prime is 20313145650299. The next prime is 20313145650313. The reversal of 20313145650311 is 11305654131302.

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 20313145650311 - 2¹⁰ = 20313145649287 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 (20313145650313) 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, 95518361 + ... + 95730786.

It is an arithmetic number, because the mean of its divisors is an integer number (5078334251418).

Almost surely, 2^{20313145650311} is an apocalyptic number.

20313145650311 is a deficient number, since it is larger than the sum of its proper divisors (191355361).

20313145650311 is a wasteful number, since it uses less digits than its factorization.

20313145650311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191355360.

The product of its (nonzero) digits is 32400, while the sum is 35.

Adding to 20313145650311 its reverse (11305654131302), we get a palindrome (31618799781613).

The spelling of 20313145650311 in words is "twenty trillion, three hundred thirteen billion, one hundred forty-five million, six hundred fifty thousand, three hundred eleven".