212111332313 has 2 divisors, whose sum is σ = 212111332314. Its totient is φ = 212111332312.

The previous prime is 212111332291. The next prime is 212111332339. The reversal of 212111332313 is 313233111212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 170179350784 + 41931981529 = 412528^2 + 204773^2 .

It is a cyclic number.

It is not a de Polignac number, because 212111332313 - 2⁶ = 212111332249 is a prime.

It is not a weakly prime, because it can be changed into another prime (212111332613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106055666156 + 106055666157.

It is an arithmetic number, because the mean of its divisors is an integer number (106055666157).

Almost surely, 2^212111332313 is an apocalyptic number.

It is an amenable number.

212111332313 is a deficient number, since it is larger than the sum of its proper divisors (1).

212111332313 is an equidigital number, since it uses as much as digits as its factorization.

212111332313 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 212111332313 its reverse (313233111212), we get a palindrome (525344443525).

The spelling of 212111332313 in words is "two hundred twelve billion, one hundred eleven million, three hundred thirty-two thousand, three hundred thirteen".