11140532509 has 2 divisors, whose sum is σ = 11140532510. Its totient is φ = 11140532508.

The previous prime is 11140532503. The next prime is 11140532537. The reversal of 11140532509 is 90523504111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7520705284 + 3619827225 = 86722^2 + 60165^2 .

It is an emirp because it is prime and its reverse (90523504111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11140532509 - 2¹⁹ = 11140008221 is a prime.

It is a super-2 number, since 2×11140532509² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11140532503) 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, 5570266254 + 5570266255.

It is an arithmetic number, because the mean of its divisors is an integer number (5570266255).

Almost surely, 2^11140532509 is an apocalyptic number.

It is an amenable number.

11140532509 is a deficient number, since it is larger than the sum of its proper divisors (1).

11140532509 is an equidigital number, since it uses as much as digits as its factorization.

11140532509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 31.

The spelling of 11140532509 in words is "eleven billion, one hundred forty million, five hundred thirty-two thousand, five hundred nine".