212321012263 has 2 divisors, whose sum is σ = 212321012264. Its totient is φ = 212321012262.

The previous prime is 212321012087. The next prime is 212321012273. The reversal of 212321012263 is 362210123212.

212321012263 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212321012263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212321012273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106160506131 + 106160506132.

It is an arithmetic number, because the mean of its divisors is an integer number (106160506132).

Almost surely, 2^212321012263 is an apocalyptic number.

212321012263 is a deficient number, since it is larger than the sum of its proper divisors (1).

212321012263 is an equidigital number, since it uses as much as digits as its factorization.

212321012263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 212321012263 its reverse (362210123212), we get a palindrome (574531135475).

The spelling of 212321012263 in words is "two hundred twelve billion, three hundred twenty-one million, twelve thousand, two hundred sixty-three".