231112101332213 has 4 divisors (see below), whose sum is σ = 231415796604108. Its totient is φ = 230808406060320.

The previous prime is 231112101332209. The next prime is 231112101332267. The reversal of 231112101332213 is 312233101211132.

231112101332213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6000427478929 + 225111673853284 = 2449577^2 + 15003722^2 .

It is a cyclic number.

It is not a de Polignac number, because 231112101332213 - 2² = 231112101332209 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 (231112101332293) 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, 151847634806 + ... + 151847636327.

It is an arithmetic number, because the mean of its divisors is an integer number (57853949151027).

Almost surely, 2^{231112101332213} is an apocalyptic number.

It is an amenable number.

231112101332213 is a deficient number, since it is larger than the sum of its proper divisors (303695271895).

231112101332213 is an equidigital number, since it uses as much as digits as its factorization.

231112101332213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303695271894.

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

Adding to 231112101332213 its reverse (312233101211132), we get a palindrome (543345202543345).

The spelling of 231112101332213 in words is "two hundred thirty-one trillion, one hundred twelve billion, one hundred one million, three hundred thirty-two thousand, two hundred thirteen".