111231323221311 has 12 divisors (see below), whose sum is σ = 160683694401880. Its totient is φ = 74146725853200.

The previous prime is 111231323221267. The next prime is 111231323221339. The reversal of 111231323221311 is 113122323132111.

111231323221311 is a `hidden beast` number, since 1 + 1 + 1 + 2 + 3 + 1 + 323 + 2 + 21 + 311 = 666.

It is not a de Polignac number, because 111231323221311 - 2⁹ = 111231323220799 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 (111231323221511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 624041581 + ... + 624219798.

Almost surely, 2^{111231323221311} is an apocalyptic number.

111231323221311 is a deficient number, since it is larger than the sum of its proper divisors (49452371180569).

111231323221311 is a wasteful number, since it uses less digits than its factorization.

111231323221311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248271286 (or 1248271283 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

Adding to 111231323221311 its reverse (113122323132111), we get a palindrome (224353646353422).

The spelling of 111231323221311 in words is "one hundred eleven trillion, two hundred thirty-one billion, three hundred twenty-three million, two hundred twenty-one thousand, three hundred eleven".