213220334113 has 2 divisors, whose sum is σ = 213220334114. Its totient is φ = 213220334112.

The previous prime is 213220334069. The next prime is 213220334137. The reversal of 213220334113 is 311433022312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 208805130304 + 4415203809 = 456952^2 + 66447^2 .

It is a cyclic number.

It is not a de Polignac number, because 213220334113 - 2¹⁷ = 213220203041 is a prime.

It is not a weakly prime, because it can be changed into another prime (213220331113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106610167056 + 106610167057.

It is an arithmetic number, because the mean of its divisors is an integer number (106610167057).

Almost surely, 2^213220334113 is an apocalyptic number.

It is an amenable number.

213220334113 is a deficient number, since it is larger than the sum of its proper divisors (1).

213220334113 is an equidigital number, since it uses as much as digits as its factorization.

213220334113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 213220334113 its reverse (311433022312), we get a palindrome (524653356425).

The spelling of 213220334113 in words is "two hundred thirteen billion, two hundred twenty million, three hundred thirty-four thousand, one hundred thirteen".