13231100213 has 4 divisors (see below), whose sum is σ = 13233787308. Its totient is φ = 13228413120.

The previous prime is 13231100203. The next prime is 13231100231. The reversal of 13231100213 is 31200113231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31200113231 = 7 ⋅4457159033.

It can be written as a sum of positive squares in 2 ways, for example, as 7011885169 + 6219215044 = 83737^2 + 78862^2 .

It is a cyclic number.

It is not a de Polignac number, because 13231100213 - 2¹² = 13231096117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13231100191 and 13231100200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13231100203) 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, 1336148 + ... + 1346013.

It is an arithmetic number, because the mean of its divisors is an integer number (3308446827).

Almost surely, 2^13231100213 is an apocalyptic number.

It is an amenable number.

13231100213 is a deficient number, since it is larger than the sum of its proper divisors (2687095).

13231100213 is an equidigital number, since it uses as much as digits as its factorization.

13231100213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2687094.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 13231100213 its reverse (31200113231), we get a palindrome (44431213444).

The spelling of 13231100213 in words is "thirteen billion, two hundred thirty-one million, one hundred thousand, two hundred thirteen".