11133412509 has 16 divisors (see below), whose sum is σ = 15331328000. Its totient is φ = 7179133680.

The previous prime is 11133412483. The next prime is 11133412519. The reversal of 11133412509 is 90521433111.

It is not a de Polignac number, because 11133412509 - 2¹² = 11133408413 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11133412519) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155964 + ... + 215850.

It is an arithmetic number, because the mean of its divisors is an integer number (958208000).

Almost surely, 2^11133412509 is an apocalyptic number.

It is an amenable number.

11133412509 is a deficient number, since it is larger than the sum of its proper divisors (4197915491).

11133412509 is a wasteful number, since it uses less digits than its factorization.

11133412509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61920.

The product of its (nonzero) digits is 3240, while the sum is 30.

The spelling of 11133412509 in words is "eleven billion, one hundred thirty-three million, four hundred twelve thousand, five hundred nine".