11391009061 has 8 divisors (see below), whose sum is σ = 11423230848. Its totient is φ = 11358828000.

The previous prime is 11391009053. The next prime is 11391009089. The reversal of 11391009061 is 16090019311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11391009061 - 2³ = 11391009053 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 (11391009761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 600756 + ... + 619426.

It is an arithmetic number, because the mean of its divisors is an integer number (1427903856).

Almost surely, 2^11391009061 is an apocalyptic number.

It is an amenable number.

11391009061 is a deficient number, since it is larger than the sum of its proper divisors (32221787).

11391009061 is a wasteful number, since it uses less digits than its factorization.

11391009061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20363.

The product of its (nonzero) digits is 1458, while the sum is 31.

The spelling of 11391009061 in words is "eleven billion, three hundred ninety-one million, nine thousand, sixty-one".