11140320281 has 2 divisors, whose sum is σ = 11140320282. Its totient is φ = 11140320280.

The previous prime is 11140320251. The next prime is 11140320283. The reversal of 11140320281 is 18202304111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7244563225 + 3895757056 = 85115^2 + 62416^2 .

It is a cyclic number.

It is not a de Polignac number, because 11140320281 - 2²⁶ = 11073211417 is a prime.

It is a super-2 number, since 2×11140320281² (a number of 21 digits) contains 22 as substring.

Together with 11140320283, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11140320283) 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, 5570160140 + 5570160141.

It is an arithmetic number, because the mean of its divisors is an integer number (5570160141).

Almost surely, 2^11140320281 is an apocalyptic number.

It is an amenable number.

11140320281 is a deficient number, since it is larger than the sum of its proper divisors (1).

11140320281 is an equidigital number, since it uses as much as digits as its factorization.

11140320281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 11140320281 its reverse (18202304111), we get a palindrome (29342624392).

The spelling of 11140320281 in words is "eleven billion, one hundred forty million, three hundred twenty thousand, two hundred eighty-one".