11491101 has 12 divisors (see below), whose sum is σ = 16799328. Its totient is φ = 7567944.

The previous prime is 11491097. The next prime is 11491153. The reversal of 11491101 is 10119411.

It is not a de Polignac number, because 11491101 - 2² = 11491097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11491001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6945 + ... + 8438.

It is an arithmetic number, because the mean of its divisors is an integer number (1399944).

Almost surely, 2^11491101 is an apocalyptic number.

It is an amenable number.

11491101 is a deficient number, since it is larger than the sum of its proper divisors (5308227).

11491101 is a wasteful number, since it uses less digits than its factorization.

11491101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15472 (or 15469 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The square root of 11491101 is about 3389.8526516650. The cubic root of 11491101 is about 225.6596346235.

The spelling of 11491101 in words is "eleven million, four hundred ninety-one thousand, one hundred one".