212331212263 has 2 divisors, whose sum is σ = 212331212264. Its totient is φ = 212331212262.

The previous prime is 212331212209. The next prime is 212331212309. The reversal of 212331212263 is 362212133212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212331212263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212331212063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106165606131 + 106165606132.

It is an arithmetic number, because the mean of its divisors is an integer number (106165606132).

Almost surely, 2^212331212263 is an apocalyptic number.

212331212263 is a deficient number, since it is larger than the sum of its proper divisors (1).

212331212263 is an equidigital number, since it uses as much as digits as its factorization.

212331212263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 28.

Adding to 212331212263 its reverse (362212133212), we get a palindrome (574543345475).

The spelling of 212331212263 in words is "two hundred twelve billion, three hundred thirty-one million, two hundred twelve thousand, two hundred sixty-three".