212030111213 has 2 divisors, whose sum is σ = 212030111214. Its totient is φ = 212030111212.

The previous prime is 212030111197. The next prime is 212030111233. The reversal of 212030111213 is 312111030212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140472791209 + 71557320004 = 374797^2 + 267502^2 .

It is a cyclic number.

It is not a de Polignac number, because 212030111213 - 2⁴ = 212030111197 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 212030111191 and 212030111200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212030111233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106015055606 + 106015055607.

It is an arithmetic number, because the mean of its divisors is an integer number (106015055607).

Almost surely, 2^212030111213 is an apocalyptic number.

It is an amenable number.

212030111213 is a deficient number, since it is larger than the sum of its proper divisors (1).

212030111213 is an equidigital number, since it uses as much as digits as its factorization.

212030111213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 212030111213 its reverse (312111030212), we get a palindrome (524141141425).

The spelling of 212030111213 in words is "two hundred twelve billion, thirty million, one hundred eleven thousand, two hundred thirteen".