12331100213 has 4 divisors (see below), whose sum is σ = 12500019468. Its totient is φ = 12162180960.

The previous prime is 12331100209. The next prime is 12331100219. The reversal of 12331100213 is 31200113321.

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 7523480644 + 4807619569 = 86738^2 + 69337^2 .

It is a cyclic number.

It is not a de Polignac number, because 12331100213 - 2² = 12331100209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12331100191 and 12331100200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12331100219) 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, 84459518 + ... + 84459663.

It is an arithmetic number, because the mean of its divisors is an integer number (3125004867).

Almost surely, 2^12331100213 is an apocalyptic number.

It is an amenable number.

12331100213 is a deficient number, since it is larger than the sum of its proper divisors (168919255).

12331100213 is an equidigital number, since it uses as much as digits as its factorization.

12331100213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168919254.

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

Adding to 12331100213 its reverse (31200113321), we get a palindrome (43531213534).

The spelling of 12331100213 in words is "twelve billion, three hundred thirty-one million, one hundred thousand, two hundred thirteen".