212105116303 has 2 divisors, whose sum is σ = 212105116304. Its totient is φ = 212105116302.

The previous prime is 212105116273. The next prime is 212105116343. The reversal of 212105116303 is 303611501212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212105116303 - 2¹⁷ = 212104985231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212105116343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106052558151 + 106052558152.

It is an arithmetic number, because the mean of its divisors is an integer number (106052558152).

Almost surely, 2^212105116303 is an apocalyptic number.

212105116303 is a deficient number, since it is larger than the sum of its proper divisors (1).

212105116303 is an equidigital number, since it uses as much as digits as its factorization.

212105116303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

Adding to 212105116303 its reverse (303611501212), we get a palindrome (515716617515).

The spelling of 212105116303 in words is "two hundred twelve billion, one hundred five million, one hundred sixteen thousand, three hundred three".