211232313111 has 16 divisors (see below), whose sum is σ = 298274694624. Its totient is φ = 132509313024.

The previous prime is 211232313109. The next prime is 211232313113. The reversal of 211232313111 is 111313232112.

It is an interprime number because it is at equal distance from previous prime (211232313109) and next prime (211232313113).

It is not a de Polignac number, because 211232313111 - 2¹ = 211232313109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211232313113) 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, 207180 + ... + 682193.

It is an arithmetic number, because the mean of its divisors is an integer number (18642168414).

Almost surely, 2^211232313111 is an apocalyptic number.

211232313111 is a deficient number, since it is larger than the sum of its proper divisors (87042381513).

211232313111 is a wasteful number, since it uses less digits than its factorization.

211232313111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894050.

The product of its digits is 216, while the sum is 21.

Adding to 211232313111 its reverse (111313232112), we get a palindrome (322545545223).

The spelling of 211232313111 in words is "two hundred eleven billion, two hundred thirty-two million, three hundred thirteen thousand, one hundred eleven".