111231321320213 has 16 divisors (see below), whose sum is σ = 118175762073600. Its totient is φ = 104331807879936.

The previous prime is 111231321320137. The next prime is 111231321320227. The reversal of 111231321320213 is 312023123132111.

It is not a de Polignac number, because 111231321320213 - 2³⁴ = 111214141451029 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 (111231321320113) 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, 5883020 + ... + 16033482.

It is an arithmetic number, because the mean of its divisors is an integer number (7385985129600).

Almost surely, 2^{111231321320213} is an apocalyptic number.

It is an amenable number.

111231321320213 is a deficient number, since it is larger than the sum of its proper divisors (6944440753387).

111231321320213 is a wasteful number, since it uses less digits than its factorization.

111231321320213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10152676.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 111231321320213 its reverse (312023123132111), we get a palindrome (423254444452324).

The spelling of 111231321320213 in words is "one hundred eleven trillion, two hundred thirty-one billion, three hundred twenty-one million, three hundred twenty thousand, two hundred thirteen".