13212321113 has 2 divisors, whose sum is σ = 13212321114. Its totient is φ = 13212321112.

The previous prime is 13212321097. The next prime is 13212321121. The reversal of 13212321113 is 31112321231.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8468968729 + 4743352384 = 92027^2 + 68872^2 .

It is a cyclic number.

It is not a de Polignac number, because 13212321113 - 2⁴ = 13212321097 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (13212321193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6606160556 + 6606160557.

It is an arithmetic number, because the mean of its divisors is an integer number (6606160557).

Almost surely, 2^13212321113 is an apocalyptic number.

It is an amenable number.

13212321113 is a deficient number, since it is larger than the sum of its proper divisors (1).

13212321113 is an equidigital number, since it uses as much as digits as its factorization.

13212321113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216, while the sum is 20.

Adding to 13212321113 its reverse (31112321231), we get a palindrome (44324642344).

The spelling of 13212321113 in words is "thirteen billion, two hundred twelve million, three hundred twenty-one thousand, one hundred thirteen".