231111342224213 has 16 divisors (see below), whose sum is σ = 257260165079616. Its totient is φ = 205830750128640.

The previous prime is 231111342224099. The next prime is 231111342224221. The reversal of 231111342224213 is 312422243111132.

It is a cyclic number.

It is not a de Polignac number, because 231111342224213 - 2¹² = 231111342220117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231111342224213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231111342224293) 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, 294122795 + ... + 294907512.

It is an arithmetic number, because the mean of its divisors is an integer number (16078760317476).

Almost surely, 2^{231111342224213} is an apocalyptic number.

It is an amenable number.

231111342224213 is a deficient number, since it is larger than the sum of its proper divisors (26148822855403).

231111342224213 is a wasteful number, since it uses less digits than its factorization.

231111342224213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589031044.

The product of its digits is 13824, while the sum is 32.

Adding to 231111342224213 its reverse (312422243111132), we get a palindrome (543533585335345).

The spelling of 231111342224213 in words is "two hundred thirty-one trillion, one hundred eleven billion, three hundred forty-two million, two hundred twenty-four thousand, two hundred thirteen".