11097261191 has 16 divisors (see below), whose sum is σ = 12052661760. Its totient is φ = 10185769440.

The previous prime is 11097261181. The next prime is 11097261199. The reversal of 11097261191 is 19116279011.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11097261191 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 (11097261199) 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, 57686 + ... + 159756.

It is an arithmetic number, because the mean of its divisors is an integer number (753291360).

Almost surely, 2^11097261191 is an apocalyptic number.

11097261191 is a deficient number, since it is larger than the sum of its proper divisors (955400569).

11097261191 is a wasteful number, since it uses less digits than its factorization.

11097261191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102286.

The product of its (nonzero) digits is 6804, while the sum is 38.

The spelling of 11097261191 in words is "eleven billion, ninety-seven million, two hundred sixty-one thousand, one hundred ninety-one".