10991101 has 16 divisors (see below), whose sum is σ = 12925440. Its totient is φ = 9238320.

The previous prime is 10991089. The next prime is 10991107. The reversal of 10991101 is 10119901.

It is a cyclic number.

It is not a de Polignac number, because 10991101 - 2⁵ = 10991069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10991107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8376 + ... + 9598.

It is an arithmetic number, because the mean of its divisors is an integer number (807840).

Almost surely, 2^10991101 is an apocalyptic number.

10991101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10991101 is a deficient number, since it is larger than the sum of its proper divisors (1934339).

10991101 is a wasteful number, since it uses less digits than its factorization.

10991101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296.

The product of its (nonzero) digits is 81, while the sum is 22.

The square root of 10991101 is about 3315.2829441844. The cubic root of 10991101 is about 222.3380195471.

The spelling of 10991101 in words is "ten million, nine hundred ninety-one thousand, one hundred one".