11247802109 has 4 divisors (see below), whose sum is σ = 11301109440. Its totient is φ = 11194494780.

The previous prime is 11247802091. The next prime is 11247802121. The reversal of 11247802109 is 90120874211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90120874211 = 37 ⋅2435699303.

It is a cyclic number.

It is not a de Polignac number, because 11247802109 - 2⁸ = 11247801853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11247802409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26653349 + ... + 26653770.

It is an arithmetic number, because the mean of its divisors is an integer number (2825277360).

Almost surely, 2^11247802109 is an apocalyptic number.

It is an amenable number.

11247802109 is a deficient number, since it is larger than the sum of its proper divisors (53307331).

11247802109 is an equidigital number, since it uses as much as digits as its factorization.

11247802109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53307330.

The product of its (nonzero) digits is 8064, while the sum is 35.

The spelling of 11247802109 in words is "eleven billion, two hundred forty-seven million, eight hundred two thousand, one hundred nine".