20214231111 has 12 divisors (see below), whose sum is σ = 29749246488. Its totient is φ = 13221886704.

The previous prime is 20214231109. The next prime is 20214231197. The reversal of 20214231111 is 11113241202.

20214231111 is a `hidden beast` number, since 202 + 142 + 311 + 11 = 666.

It is not a de Polignac number, because 20214231111 - 2¹ = 20214231109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20214231511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21188445 + ... + 21189398.

It is an arithmetic number, because the mean of its divisors is an integer number (2479103874).

Almost surely, 2^20214231111 is an apocalyptic number.

20214231111 is a deficient number, since it is larger than the sum of its proper divisors (9535015377).

20214231111 is a wasteful number, since it uses less digits than its factorization.

20214231111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42377902 (or 42377899 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 20214231111 its reverse (11113241202), we get a palindrome (31327472313).

The spelling of 20214231111 in words is "twenty billion, two hundred fourteen million, two hundred thirty-one thousand, one hundred eleven".