11081457091 has 8 divisors (see below), whose sum is σ = 11274108768. Its totient is φ = 10889160000.

The previous prime is 11081457071. The next prime is 11081457103. The reversal of 11081457091 is 19075418011.

It is a happy number.

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 11081457091 - 2¹¹ = 11081455043 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11081457091.

It is not an unprimeable number, because it can be changed into a prime (11081457011) 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, 25210 + ... + 150991.

It is an arithmetic number, because the mean of its divisors is an integer number (1409263596).

Almost surely, 2^11081457091 is an apocalyptic number.

11081457091 is a deficient number, since it is larger than the sum of its proper divisors (192651677).

11081457091 is a wasteful number, since it uses less digits than its factorization.

11081457091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177293.

The product of its (nonzero) digits is 10080, while the sum is 37.

The spelling of 11081457091 in words is "eleven billion, eighty-one million, four hundred fifty-seven thousand, ninety-one".