212100263 has 2 divisors, whose sum is σ = 212100264. Its totient is φ = 212100262.

The previous prime is 212100241. The next prime is 212100281. The reversal of 212100263 is 362001212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212100263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212100283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106050131 + 106050132.

It is an arithmetic number, because the mean of its divisors is an integer number (106050132).

Almost surely, 2^212100263 is an apocalyptic number.

212100263 is a deficient number, since it is larger than the sum of its proper divisors (1).

212100263 is an equidigital number, since it uses as much as digits as its factorization.

212100263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 212100263 is about 14563.6624171257. The cubic root of 212100263 is about 596.3671811787.

Adding to 212100263 its reverse (362001212), we get a palindrome (574101475).

The spelling of 212100263 in words is "two hundred twelve million, one hundred thousand, two hundred sixty-three".