212040263 has 2 divisors, whose sum is σ = 212040264. Its totient is φ = 212040262.

The previous prime is 212040223. The next prime is 212040281. The reversal of 212040263 is 362040212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212040263 - 2¹⁴ = 212023879 is a prime.

It is a super-2 number, since 2×212040263² = 89922146266218338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212040203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106020131 + 106020132.

It is an arithmetic number, because the mean of its divisors is an integer number (106020132).

Almost surely, 2^212040263 is an apocalyptic number.

212040263 is a deficient number, since it is larger than the sum of its proper divisors (1).

212040263 is an equidigital number, since it uses as much as digits as its factorization.

212040263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 212040263 is about 14561.6023500163. The cubic root of 212040263 is about 596.3109414159.

Adding to 212040263 its reverse (362040212), we get a palindrome (574080475).

The spelling of 212040263 in words is "two hundred twelve million, forty thousand, two hundred sixty-three".