11240140309 has 2 divisors, whose sum is σ = 11240140310. Its totient is φ = 11240140308.

The previous prime is 11240140271. The next prime is 11240140321. The reversal of 11240140309 is 90304104211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6558570225 + 4681570084 = 80985^2 + 68422^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11240140309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11240140409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5620070154 + 5620070155.

It is an arithmetic number, because the mean of its divisors is an integer number (5620070155).

Almost surely, 2^11240140309 is an apocalyptic number.

It is an amenable number.

11240140309 is a deficient number, since it is larger than the sum of its proper divisors (1).

11240140309 is an equidigital number, since it uses as much as digits as its factorization.

11240140309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 11240140309 in words is "eleven billion, two hundred forty million, one hundred forty thousand, three hundred nine".