20316252211211 has 64 divisors (see below), whose sum is σ = 25367028940800. Its totient is φ = 16030521561600.

The previous prime is 20316252211187. The next prime is 20316252211231. The reversal of 20316252211211 is 11211225261302.

It is a cyclic number.

It is not a de Polignac number, because 20316252211211 - 2¹⁰ = 20316252210187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20316252211231) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19419056 + ... + 20438498.

It is an arithmetic number, because the mean of its divisors is an integer number (396359827200).

Almost surely, 2^{20316252211211} is an apocalyptic number.

20316252211211 is a deficient number, since it is larger than the sum of its proper divisors (5050776729589).

20316252211211 is a wasteful number, since it uses less digits than its factorization.

20316252211211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019640.

The product of its (nonzero) digits is 2880, while the sum is 29.

Adding to 20316252211211 its reverse (11211225261302), we get a palindrome (31527477472513).

The spelling of 20316252211211 in words is "twenty trillion, three hundred sixteen billion, two hundred fifty-two million, two hundred eleven thousand, two hundred eleven".