11256068281 has 2 divisors, whose sum is σ = 11256068282. Its totient is φ = 11256068280.

The previous prime is 11256068269. The next prime is 11256068297. The reversal of 11256068281 is 18286065211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7225850025 + 4030218256 = 85005^2 + 63484^2 .

It is a cyclic number.

It is not a de Polignac number, because 11256068281 - 2¹³ = 11256060089 is a prime.

It is a super-2 number, since 2×11256068281² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11256068231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5628034140 + 5628034141.

It is an arithmetic number, because the mean of its divisors is an integer number (5628034141).

Almost surely, 2^11256068281 is an apocalyptic number.

It is an amenable number.

11256068281 is a deficient number, since it is larger than the sum of its proper divisors (1).

11256068281 is an equidigital number, since it uses as much as digits as its factorization.

11256068281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46080, while the sum is 40.

The spelling of 11256068281 in words is "eleven billion, two hundred fifty-six million, sixty-eight thousand, two hundred eighty-one".