20331312123211 has 8 divisors (see below), whose sum is σ = 20533647037280. Its totient is φ = 20129072277312.

The previous prime is 20331312123191. The next prime is 20331312123233. The reversal of 20331312123211 is 11232121313302.

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 20331312123211 - 2¹³ = 20331312115019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20331312123511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23337156 + ... + 24192673.

It is an arithmetic number, because the mean of its divisors is an integer number (2566705879660).

Almost surely, 2^{20331312123211} is an apocalyptic number.

20331312123211 is a deficient number, since it is larger than the sum of its proper divisors (202334914069).

20331312123211 is a wasteful number, since it uses less digits than its factorization.

20331312123211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47534085.

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

Adding to 20331312123211 its reverse (11232121313302), we get a palindrome (31563433436513).

The spelling of 20331312123211 in words is "twenty trillion, three hundred thirty-one billion, three hundred twelve million, one hundred twenty-three thousand, two hundred eleven".