20331112311 has 12 divisors (see below), whose sum is σ = 31094642592. Its totient is φ = 12756776256.

The previous prime is 20331112309. The next prime is 20331112327. The reversal of 20331112311 is 11321113302.

20331112311 is a `hidden beast` number, since 20 + 331 + 1 + 1 + 2 + 311 = 666.

It is not a de Polignac number, because 20331112311 - 2¹ = 20331112309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20331112391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66441391 + ... + 66441696.

It is an arithmetic number, because the mean of its divisors is an integer number (2591220216).

Almost surely, 2^20331112311 is an apocalyptic number.

20331112311 is a deficient number, since it is larger than the sum of its proper divisors (10763530281).

20331112311 is a wasteful number, since it uses less digits than its factorization.

20331112311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132883110 (or 132883107 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 20331112311 its reverse (11321113302), we get a palindrome (31652225613).

Subtracting from 20331112311 its reverse (11321113302), we obtain a palindrome (9009999009).

The spelling of 20331112311 in words is "twenty billion, three hundred thirty-one million, one hundred twelve thousand, three hundred eleven".