268443011 has 2 divisors, whose sum is σ = 268443012. Its totient is φ = 268443010.

The previous prime is 268442989. The next prime is 268443059. The reversal of 268443011 is 110344862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 268443011 - 2⁶ = 268442947 is a prime.

It is a super-3 number, since 3×268443011³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (268443061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134221505 + 134221506.

It is an arithmetic number, because the mean of its divisors is an integer number (134221506).

Almost surely, 2^268443011 is an apocalyptic number.

268443011 is a deficient number, since it is larger than the sum of its proper divisors (1).

268443011 is an equidigital number, since it uses as much as digits as its factorization.

268443011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 268443011 is about 16384.2305586805. The cubic root of 268443011 is about 645.0856293181.

Adding to 268443011 its reverse (110344862), we get a palindrome (378787873).

The spelling of 268443011 in words is "two hundred sixty-eight million, four hundred forty-three thousand, eleven".