20311132303211 has 16 divisors (see below), whose sum is σ = 20591727660000. Its totient is φ = 20031711338496.

The previous prime is 20311132303201. The next prime is 20311132303237. The reversal of 20311132303211 is 11230323111302.

It is a cyclic number.

It is not a de Polignac number, because 20311132303211 - 2¹⁴ = 20311132286827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20311132303201) 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, 435660260 + ... + 435706878.

It is an arithmetic number, because the mean of its divisors is an integer number (1286982978750).

Almost surely, 2^{20311132303211} is an apocalyptic number.

20311132303211 is a deficient number, since it is larger than the sum of its proper divisors (280595356789).

20311132303211 is a wasteful number, since it uses less digits than its factorization.

20311132303211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59086.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 20311132303211 its reverse (11230323111302), we get a palindrome (31541455414513).

The spelling of 20311132303211 in words is "twenty trillion, three hundred eleven billion, one hundred thirty-two million, three hundred three thousand, two hundred eleven".