231041111333213 has 4 divisors (see below), whose sum is σ = 231041174647068. Its totient is φ = 231041048019360.

The previous prime is 231041111333203. The next prime is 231041111333261. The reversal of 231041111333213 is 312333111140132.

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 108067605340249 + 122973505992964 = 10395557^2 + 11089342^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231041111333213 is a prime.

It is a super-2 number, since 2×231041111333213² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231041111333203) 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, 25825106 + ... + 33600867.

It is an arithmetic number, because the mean of its divisors is an integer number (57760293661767).

Almost surely, 2^{231041111333213} is an apocalyptic number.

It is an amenable number.

231041111333213 is a deficient number, since it is larger than the sum of its proper divisors (63313855).

231041111333213 is an equidigital number, since it uses as much as digits as its factorization.

231041111333213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63313854.

The product of its (nonzero) digits is 3888, while the sum is 29.

Adding to 231041111333213 its reverse (312333111140132), we get a palindrome (543374222473345).

The spelling of 231041111333213 in words is "two hundred thirty-one trillion, forty-one billion, one hundred eleven million, three hundred thirty-three thousand, two hundred thirteen".