213132321113 has 2 divisors, whose sum is σ = 213132321114. Its totient is φ = 213132321112.

The previous prime is 213132321071. The next prime is 213132321163. The reversal of 213132321113 is 311123231312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127325507929 + 85806813184 = 356827^2 + 292928^2 .

It is a cyclic number.

It is not a de Polignac number, because 213132321113 - 2¹⁴ = 213132304729 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 (213132321163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106566160556 + 106566160557.

It is an arithmetic number, because the mean of its divisors is an integer number (106566160557).

Almost surely, 2^213132321113 is an apocalyptic number.

It is an amenable number.

213132321113 is a deficient number, since it is larger than the sum of its proper divisors (1).

213132321113 is an equidigital number, since it uses as much as digits as its factorization.

213132321113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 23.

Adding to 213132321113 its reverse (311123231312), we get a palindrome (524255552425).

The spelling of 213132321113 in words is "two hundred thirteen billion, one hundred thirty-two million, three hundred twenty-one thousand, one hundred thirteen".