11002442509 has 4 divisors (see below), whose sum is σ = 11157406560. Its totient is φ = 10847478460.

The previous prime is 11002442497. The next prime is 11002442519. The reversal of 11002442509 is 90524420011.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11002442509 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 (11002442519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77481919 + ... + 77482060.

It is an arithmetic number, because the mean of its divisors is an integer number (2789351640).

Almost surely, 2^11002442509 is an apocalyptic number.

It is an amenable number.

11002442509 is a deficient number, since it is larger than the sum of its proper divisors (154964051).

11002442509 is an equidigital number, since it uses as much as digits as its factorization.

11002442509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154964050.

The product of its (nonzero) digits is 2880, while the sum is 28.

The spelling of 11002442509 in words is "eleven billion, two million, four hundred forty-two thousand, five hundred nine".