212013413317 has 2 divisors, whose sum is σ = 212013413318. Its totient is φ = 212013413316.

The previous prime is 212013413303. The next prime is 212013413321. The reversal of 212013413317 is 713314310212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146133411076 + 65880002241 = 382274^2 + 256671^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212013413317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212013416317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106006706658 + 106006706659.

It is an arithmetic number, because the mean of its divisors is an integer number (106006706659).

Almost surely, 2^212013413317 is an apocalyptic number.

It is an amenable number.

212013413317 is a deficient number, since it is larger than the sum of its proper divisors (1).

212013413317 is an equidigital number, since it uses as much as digits as its factorization.

212013413317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

Adding to 212013413317 its reverse (713314310212), we get a palindrome (925327723529).

The spelling of 212013413317 in words is "two hundred twelve billion, thirteen million, four hundred thirteen thousand, three hundred seventeen".