213120206113 has 2 divisors, whose sum is σ = 213120206114. Its totient is φ = 213120206112.

The previous prime is 213120206111. The next prime is 213120206147. The reversal of 213120206113 is 311602021312.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 213058865889 + 61340224 = 461583^2 + 7832^2 .

It is a cyclic number.

It is not a de Polignac number, because 213120206113 - 2¹ = 213120206111 is a prime.

Together with 213120206111, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (213120206111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106560103056 + 106560103057.

It is an arithmetic number, because the mean of its divisors is an integer number (106560103057).

Almost surely, 2^213120206113 is an apocalyptic number.

It is an amenable number.

213120206113 is a deficient number, since it is larger than the sum of its proper divisors (1).

213120206113 is an equidigital number, since it uses as much as digits as its factorization.

213120206113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 213120206113 its reverse (311602021312), we get a palindrome (524722227425).

The spelling of 213120206113 in words is "two hundred thirteen billion, one hundred twenty million, two hundred six thousand, one hundred thirteen".