212342422013 has 2 divisors, whose sum is σ = 212342422014. Its totient is φ = 212342422012.

The previous prime is 212342422009. The next prime is 212342422049. The reversal of 212342422013 is 310224243212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209633948164 + 2708473849 = 457858^2 + 52043^2 .

It is a cyclic number.

It is not a de Polignac number, because 212342422013 - 2² = 212342422009 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212342422073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106171211006 + 106171211007.

It is an arithmetic number, because the mean of its divisors is an integer number (106171211007).

Almost surely, 2^212342422013 is an apocalyptic number.

It is an amenable number.

212342422013 is a deficient number, since it is larger than the sum of its proper divisors (1).

212342422013 is an equidigital number, since it uses as much as digits as its factorization.

212342422013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 212342422013 its reverse (310224243212), we get a palindrome (522566665225).

The spelling of 212342422013 in words is "two hundred twelve billion, three hundred forty-two million, four hundred twenty-two thousand, thirteen".