12231332111 has 4 divisors (see below), whose sum is σ = 12231749424. Its totient is φ = 12230914800.

The previous prime is 12231332107. The next prime is 12231332161. The reversal of 12231332111 is 11123313221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11123313221 = 8369 ⋅1329109.

It is a cyclic number.

It is not a de Polignac number, because 12231332111 - 2² = 12231332107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12231332161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161075 + ... + 224516.

It is an arithmetic number, because the mean of its divisors is an integer number (3057937356).

Almost surely, 2^12231332111 is an apocalyptic number.

12231332111 is a deficient number, since it is larger than the sum of its proper divisors (417313).

12231332111 is an equidigital number, since it uses as much as digits as its factorization.

12231332111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417312.

The product of its digits is 216, while the sum is 20.

Adding to 12231332111 its reverse (11123313221), we get a palindrome (23354645332).

The spelling of 12231332111 in words is "twelve billion, two hundred thirty-one million, three hundred thirty-two thousand, one hundred eleven".