11130506609 has 4 divisors (see below), whose sum is σ = 11131187520. Its totient is φ = 11129825700.

The previous prime is 11130506591. The next prime is 11130506701. The reversal of 11130506609 is 90660503111.

It is a happy number.

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 not a de Polignac number, because 11130506609 - 2⁸ = 11130506353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11130506809) 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, 315317 + ... + 348834.

It is an arithmetic number, because the mean of its divisors is an integer number (2782796880).

Almost surely, 2^11130506609 is an apocalyptic number.

It is an amenable number.

11130506609 is a deficient number, since it is larger than the sum of its proper divisors (680911).

11130506609 is an equidigital number, since it uses as much as digits as its factorization.

11130506609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680910.

The product of its (nonzero) digits is 4860, while the sum is 32.

The spelling of 11130506609 in words is "eleven billion, one hundred thirty million, five hundred six thousand, six hundred nine".